Input:
Sentence1: Male dogs use pheromones in urine to mark their territory.
Sentence2: Generally, pheromones are volatile substances.

Output: pheromones


Input:
Sentence1: Marine biomes are found in the salt water of the ocean.
Sentence2: Sea tigers are found in the salt water of the ocean.

Output: found


Input:
Sentence1: Marine biomes are found in the salt water of the ocean.
Sentence2: Sea tigers are found in the salt water of the ocean.

Output: ocean


Input:
Sentence1: Marine biomes are found in the salt water of the ocean.
Sentence2: Sea tigers are found in the salt water of the ocean.

Output: salt


Input:
Sentence1: Marine biomes are found in the salt water of the ocean.
Sentence2: Sea tigers are found in the salt water of the ocean.

Output: water


Input:
Sentence1: Cancer is an uncontrolled cell division.
Sentence2: Cancer often causes growth.

Output: Cancer


Input:
Sentence1: Balance is the ability to sense and maintain body position.
Sentence2: the ability to maintain equilibrium is the ability to sense and maintain body position.

Output: ability


Input:
Sentence1: Balance is the ability to sense and maintain body position.
Sentence2: the ability to maintain equilibrium is the ability to sense and maintain body position.

Output: body


Input:
Sentence1: Balance is the ability to sense and maintain body position.
Sentence2: the ability to maintain equilibrium is the ability to sense and maintain body position.

Output: maintain


Input:
Sentence1: Balance is the ability to sense and maintain body position.
Sentence2: the ability to maintain equilibrium is the ability to sense and maintain body position.

Output: position


Input:
Sentence1: Balance is the ability to sense and maintain body position.
Sentence2: the ability to maintain equilibrium is the ability to sense and maintain body position.

Output: sense


Input:
Sentence1: Water erosion has similar consequences as wind erosion.
Sentence2: The power of wind and water can cause a river to deepen and widen.

Output: Water


Input:
Sentence1: Water erosion has similar consequences as wind erosion.
Sentence2: The power of wind and water can cause a river to deepen and widen.

Output: wind


Input:
Sentence1: electrocution causes harm to an organism.
Sentence2: Electrocution causes organisms to be pained.

Output: causes


Input:
Sentence1: electrocution causes harm to an organism.
Sentence2: Electrocution causes organisms to be pained.

Output: electrocution


Input:
Sentence1: electrocution causes harm to an organism.
Sentence2: Electrocution causes organisms to be pained.

Output: organism


Input:
Sentence1: Fungi are aerobic organisms.
Sentence2: Oxygen is essential for fungi cellular respiration.

Output: Fungi


Input:
Sentence1: Bees are naturalized on every continent except Antarctica.
Sentence2: Bees do not live underwater.

Output: Bees


Input:
Sentence1: Bees are naturalized on every continent except Antarctica.
Sentence2: Bees do not live underwater.

Output: except


Input:
Sentence1: Sperm pass out of the body through the urethra.
Sentence2: From there, urine is expelled through the urethra and out of the body.

Output: urethra


Input:
Sentence1: damming a river can cause a lake to form.
Sentence2: Lakes are formed by beavers.

Output: form


Input:
Sentence1: damming a river can cause a lake to form.
Sentence2: Lakes are formed by beavers.

Output: lake


Input:
Sentence1: high pressure systems cause clear weather.
Sentence2: Weather Clear weather usually means good visibility.

Output: clear


Input:
Sentence1: high pressure systems cause clear weather.
Sentence2: Weather Clear weather usually means good visibility.

Output: weather


Input:
Sentence1: water causes refraction of light.
Sentence2: Water is a compound of hydrogen and oxygen.

Output: water


Input:
Sentence1: Viruses are not cells.
Sentence2: Viruses are not tissue.

Output: Viruses


Input:
Sentence1: Viruses are not cells.
Sentence2: Viruses are not tissue.

Output: not


Input:
Sentence1: Population crashes in high density populations are so devastating that extinction becomes probable.
Sentence2: If the number of individuals of a species increases too quickly too much in a fixed area, the species can become extinct.

Output: extinction


Input:
Sentence1: Adult sponges are sessile.
Sentence2: Hydras are sessile, attaching to some sort of substrate.

Output: sessile


Input:
Sentence1: cooking food requires adding heat energy.
Sentence2: humans add heat energy to their food.

Output: energy


Input:
Sentence1: cooking food requires adding heat energy.
Sentence2: humans add heat energy to their food.

Output: heat


Input:
Sentence1: Vertebrates are animals that have a backbone.
Sentence2: birds have a backbone.

Output: backbone


Input:
Sentence1: Vertebrates are animals that have a backbone.
Sentence2: birds have a backbone.

Output: have


Input:
Sentence1: dropping an object into water causes vibrations in the water.
Sentence2: Sound vibrations can be compared to pond ripples.

Output: vibrations


Input:
Sentence1: Some red algae are eaten by humans.
Sentence2: Something eaten by humans have varied life cycles.

Output: eaten


Input:
Sentence1: Some red algae are eaten by humans.
Sentence2: Something eaten by humans have varied life cycles.

Output: humans


Input:
Sentence1: Humans are complex organisms.
Sentence2: spores may be dispersed by humans.

Output: Humans


Input:
Sentence1: All complex living creatures, are organized by a nervous system .
Sentence2: Most invertebrates are complex living creatures.

Output: complex


Input:
Sentence1: All complex living creatures, are organized by a nervous system .
Sentence2: Most invertebrates are complex living creatures.

Output: creatures


Input:
Sentence1: All complex living creatures, are organized by a nervous system .
Sentence2: Most invertebrates are complex living creatures.

Output: living


Input:
Sentence1: Ethologists usually study how animals behave in their natural environment.
Sentence2: Germs are a natural part of the environment.

Output: environment


Input:
Sentence1: Ethologists usually study how animals behave in their natural environment.
Sentence2: Germs are a natural part of the environment.

Output: natural


Input:
Sentence1: Forecast changes in wind speed and direction at 850 mb should be used in formulating forecasts of surface winds for the narrative fire weather forecast and the point forecast for Finney Creek.
Sentence2: Anemometers help prevent forest fires.

Output: fire


Input:
Sentence1: bad weather decreases visibility while driving.
Sentence2: hail decreases visibility while driving.

Output: decreases


Input:
Sentence1: bad weather decreases visibility while driving.
Sentence2: hail decreases visibility while driving.

Output: driving


Input:
Sentence1: bad weather decreases visibility while driving.
Sentence2: hail decreases visibility while driving.

Output: visibility


Input:
Sentence1: bad weather decreases visibility while driving.
Sentence2: hail decreases visibility while driving.

Output: while


Input:
Sentence1: Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants.
Sentence2: Ethanol production is reliant on the sun's energy.

Output: Ethanol


Input:
Sentence1: Slime molds are fungus-like protists commonly found on rotting logs and compost.
Sentence2: True Slime Molds Slime molds are a mucus-like organism.

Output: Slime


Input:
Sentence1: Slime molds are fungus-like protists commonly found on rotting logs and compost.
Sentence2: True Slime Molds Slime molds are a mucus-like organism.

Output: molds


Input:
Sentence1: hunting requires seeing prey.
Sentence2: Hunting allows for predators to attack, then kill and eat.

Output: hunting


Input:
Sentence1: damming a river can cause a lake to form.
Sentence2: Dams are very damaging to rivers.

Output: damming


Input:
Sentence1: competition may cause animals to fight towards members of their own species.
Sentence2: competition may cause humans to fight each other.

Output: cause


Input:
Sentence1: competition may cause animals to fight towards members of their own species.
Sentence2: competition may cause humans to fight each other.

Output: competition


Input:
Sentence1: competition may cause animals to fight towards members of their own species.
Sentence2: competition may cause humans to fight each other.

Output: fight


Input:
Sentence1: transpiration is when water vapor moves from plants into the atmosphere.
Sentence2: Transpiration is the process of water loss from plants through stomata .

Output: transpiration


Input:
Sentence1: a circle graph can be used to display percents.
Sentence2: pie charts are circle graphs.

Output: circle


Input:
Sentence1: a circle graph can be used to display percents.
Sentence2: pie charts are circle graphs.

Output: graph


Input:
Sentence1: All sediments originate from the weathering and erosion of older rocks.
Sentence2: sediment is formed by erosion.

Output: erosion


Input:
Sentence1: Hair helps to insulate and protect the body.
Sentence2: Hair is produced by living cells in the hair follicles at the base of each hair.

Output: Hair


Input:
Sentence1: Producers are organisms that produce food for themselves and other organisms.
Sentence2: Parasites are organisms that obtain their food from living organisms.

Output: organisms


Input:
Sentence1: knowledge of the stars can be used to navigate.
Sentence2: Astronomy is the study of the planets, stars, and universe.

Output: stars


Input:
Sentence1: Then, in 1897, a man named David Misell invented the flashlight.
Sentence2: Something invented by David Misell converts chemical energy into light energy.

Output: David


Input:
Sentence1: Then, in 1897, a man named David Misell invented the flashlight.
Sentence2: Something invented by David Misell converts chemical energy into light energy.

Output: Misell


Input:
Sentence1: Then, in 1897, a man named David Misell invented the flashlight.
Sentence2: Something invented by David Misell converts chemical energy into light energy.

Output: invented


Input:
Sentence1: the Earth being tilted on its rotating axis causes seasons.
Sentence2: Every season changes because the temperature changes with the seasons.

Output: seasons


Input:
Sentence1: Plants detect and respond to the daily cycle of light and darkness.
Sentence2: Bamboos are vigorous, rugged plants.

Output: Plants


Input:
Sentence1: a human requires sleep to be healthy.
Sentence2: a human is required to dream to be healthy.

Output: healthy


Input:
Sentence1: a human requires sleep to be healthy.
Sentence2: a human is required to dream to be healthy.

Output: human


Input:
Sentence1: a human requires sleep to be healthy.
Sentence2: a human is required to dream to be healthy.

Output: requires


Input:
Sentence1: Migration is a type of movement that changes population size.
Sentence2: Birds migrate to escape poor weather and food supply.

Output: Migration


Input:
Sentence1: Reproduction is the process by which organisms give rise to offspring.
Sentence2: Then, the lowest energy offspring are used as parents for the next generation.

Output: offspring


Input:
Sentence1: Water is also a liquid.
Sentence2: a graduated cylinder is used to measure volume of water.

Output: Water


Input:
Sentence1: pasteurization reduces the amount of bacteria in milk.
Sentence2: Bacteria and blue-green bacteria are prokaryotic cells.

Output: bacteria


Input:
Sentence1: Cancer is an example of a mutation in cells.
Sentence2: mutated cells divide more often than normal cells, and grow out of control.

Output: cells


Input:
Sentence1: Cancer is an example of a mutation in cells.
Sentence2: mutated cells divide more often than normal cells, and grow out of control.

Output: mutation


Input:
Sentence1: the moon revolving around the Earth causes the phases of the moon.
Sentence2: Phases of the moon, however, depend on the relative positions of the Earth, moon, and Sun.

Output: Earth


Input:
Sentence1: Proper digestion is vital for nutrient absorption.
Sentence2: Digestion is important for an animal's survival.

Output: digestion


Input:
Sentence1: Adolescence is the last stage of life before adulthood.
Sentence2: the last stage of life before adulthood begins with puberty.

Output: adulthood


Input:
Sentence1: Adolescence is the last stage of life before adulthood.
Sentence2: the last stage of life before adulthood begins with puberty.

Output: before


Input:
Sentence1: Adolescence is the last stage of life before adulthood.
Sentence2: the last stage of life before adulthood begins with puberty.

Output: last


Input:
Sentence1: Adolescence is the last stage of life before adulthood.
Sentence2: the last stage of life before adulthood begins with puberty.

Output: life


Input:
Sentence1: Adolescence is the last stage of life before adulthood.
Sentence2: the last stage of life before adulthood begins with puberty.

Output: stage


Input:
Sentence1: Adolescence is the last stage of life before adulthood.
Sentence2: the last stage of life before adulthood begins with puberty.

Output: the


Input:
Sentence1: Dogs, of course, are mammals.
Sentence2: Playing is one way dogs learn how to behave.

Output: Dogs


Input:
Sentence1: Asbestos is a known carcinogen.
Sentence2: asbestos causes cancer by producing mutations in DNA.

Output: Asbestos


Input:
Sentence1: Basal bodies function as centrioles.
Sentence2: Basal bodies function as organelles involved in cell division.

Output: Basal


Input:
Sentence1: Basal bodies function as centrioles.
Sentence2: Basal bodies function as organelles involved in cell division.

Output: bodies


Input:
Sentence1: Basal bodies function as centrioles.
Sentence2: Basal bodies function as organelles involved in cell division.

Output: function


Input:
Sentence1: Relocation requires moving a family and a lifestyle.
Sentence2: if a habitat can no longer support animals then relocation is required.

Output: Relocation


Input:
Sentence1: Relocation requires moving a family and a lifestyle.
Sentence2: if a habitat can no longer support animals then relocation is required.

Output: requires


Input:
Sentence1: Cells are organized into tissues, and tissues form organs.
Sentence2: Cells form tissues, and tissues form skin.

Output: Cells


Input:
Sentence1: Cells are organized into tissues, and tissues form organs.
Sentence2: Cells form tissues, and tissues form skin.

Output: form


Input:
Sentence1: Cells are organized into tissues, and tissues form organs.
Sentence2: Cells form tissues, and tissues form skin.

Output: tissues


Input:
Sentence1: Sound waves are vibrations in matter.
Sentence2: a rubber band snapping causes the particles in the rubber band to cause sound waves.

Output: Sound


Input:
Sentence1: Sound waves are vibrations in matter.
Sentence2: a rubber band snapping causes the particles in the rubber band to cause sound waves.

Output: waves


Input:
Sentence1: shelter is used for protection by animals against weather.
Sentence2: Trees provide animals protection against the weather.

Output: against


Input:
Sentence1: shelter is used for protection by animals against weather.
Sentence2: Trees provide animals protection against the weather.

Output: animals


Input:
Sentence1: shelter is used for protection by animals against weather.
Sentence2: Trees provide animals protection against the weather.

Output: protection


Input:
Sentence1: shelter is used for protection by animals against weather.
Sentence2: Trees provide animals protection against the weather.

Output: weather


Input:
Sentence1: Roots have primary and secondary meristems for growth in length and width.
Sentence2: Size is measured by width and length.

Output: length


Input:
Sentence1: Roots have primary and secondary meristems for growth in length and width.
Sentence2: Size is measured by width and length.

Output: width


Input:
Sentence1: carpooling decreases the amount of cars used to travel to a place.
Sentence2: Cars are a significant source of air pollution.

Output: cars


Input:
Sentence1: Transpiration is the loss of water vapor by plants.
Sentence2: Stomata closing reduces transpiration.

Output: Transpiration


Input:
Sentence1: Aggression is behavior that is intended to cause harm or pain.
Sentence2: Verbal violence is behavior that is intended to cause harm or pain.

Output: behavior


Input:
Sentence1: Aggression is behavior that is intended to cause harm or pain.
Sentence2: Verbal violence is behavior that is intended to cause harm or pain.

Output: cause


Input:
Sentence1: Aggression is behavior that is intended to cause harm or pain.
Sentence2: Verbal violence is behavior that is intended to cause harm or pain.

Output: harm


Input:
Sentence1: Aggression is behavior that is intended to cause harm or pain.
Sentence2: Verbal violence is behavior that is intended to cause harm or pain.

Output: intended


Input:
Sentence1: Aggression is behavior that is intended to cause harm or pain.
Sentence2: Verbal violence is behavior that is intended to cause harm or pain.

Output: pain


Input:
Sentence1: Vertebrate chordates have a backbone.
Sentence2: Vertebrate chordates have a vertebrae.

Output: Vertebrate


Input:
Sentence1: Vertebrate chordates have a backbone.
Sentence2: Vertebrate chordates have a vertebrae.

Output: a


Input:
Sentence1: Vertebrate chordates have a backbone.
Sentence2: Vertebrate chordates have a vertebrae.

Output: chordates


Input:
Sentence1: Vertebrate chordates have a backbone.
Sentence2: Vertebrate chordates have a vertebrae.

Output: have


Input:
Sentence1: Mussels are bivalve mollusks.
Sentence2: Most mussels have shells.

Output: Mussels


Input:
Sentence1: if a neutral atom loses an electron then an atom with a negative charge will be formed.
Sentence2: When an atom or molecule is no longer neutral it is called an ion .

Output: neutral


Input:
Sentence1: Roundworms reproduce sexually.
Sentence2: An infection abundant in meat-eating cultures can reproduce sexually.

Output: reproduce


Input:
Sentence1: Roundworms reproduce sexually.
Sentence2: An infection abundant in meat-eating cultures can reproduce sexually.

Output: sexually


Input:
Sentence1: the vanes rotating in an electric fan causes air to move.
Sentence2: Fans move air, providing a cooling breeze.

Output: air


Input:
Sentence1: the vanes rotating in an electric fan causes air to move.
Sentence2: Fans move air, providing a cooling breeze.

Output: move


Input:
Sentence1: Sunlight is a form of electromagnetic energy.
Sentence2: Most ecosystems get energy from electromagnetic energy.

Output: electromagnetic


Input:
Sentence1: Sunlight is a form of electromagnetic energy.
Sentence2: Most ecosystems get energy from electromagnetic energy.

Output: energy


Input:
Sentence1: Cell division involves a form of mitosis.
Sentence2: cytokinesis is the final stage of mitosis in eukaryotes as well as prokaryotes.

Output: mitosis


Input:
Sentence1: Stimuli are detected by sensory nerve cells.
Sentence2: most of the hairs on insects are used to detect stimuli.

Output: Stimuli


Input:
Sentence1: Finally, the fluid in the nephron reaches a collecting duct .
Sentence2: fluid in the kidneys collect into ducts.

Output: fluid


Input:
Sentence1: Internal organs that can be affected include kidneys, lungs, heart and brain.
Sentence2: bone provides protection for lungs.

Output: lungs


Input:
Sentence1: Invertebrates have no backbone.
Sentence2: mollusks have no backbone.

Output: backbone


Input:
Sentence1: Salivary glands are found in the mouth.
Sentence2: Food is easier to chew because it is moistened by saliva from glands found in the mouth.

Output: found


Input:
Sentence1: Salivary glands are found in the mouth.
Sentence2: Food is easier to chew because it is moistened by saliva from glands found in the mouth.

Output: glands


Input:
Sentence1: Salivary glands are found in the mouth.
Sentence2: Food is easier to chew because it is moistened by saliva from glands found in the mouth.

Output: mouth


Input:
Sentence1: Climate is the average weather in an area over a long period of time.
Sentence2: the average weather in Taiwan over a long period of time is subtropical.

Output: average


Input:
Sentence1: Climate is the average weather in an area over a long period of time.
Sentence2: the average weather in Taiwan over a long period of time is subtropical.

Output: long


Input:
Sentence1: Climate is the average weather in an area over a long period of time.
Sentence2: the average weather in Taiwan over a long period of time is subtropical.

Output: over


Input:
Sentence1: Climate is the average weather in an area over a long period of time.
Sentence2: the average weather in Taiwan over a long period of time is subtropical.

Output: period


Input:
Sentence1: Climate is the average weather in an area over a long period of time.
Sentence2: the average weather in Taiwan over a long period of time is subtropical.

Output: time


Input:
Sentence1: Climate is the average weather in an area over a long period of time.
Sentence2: the average weather in Taiwan over a long period of time is subtropical.

Output: weather


Input:
Sentence1: Mammalian teeth are important for digestion.
Sentence2: Mammalian predators include the coyote and bobcat.

Output: Mammalian


Input:
Sentence1: Cells are the basic units of the structure and function of living things.
Sentence2: Cells are the basic units of the structure and are biodegradable.

Output: Cells


Input:
Sentence1: Cells are the basic units of the structure and function of living things.
Sentence2: Cells are the basic units of the structure and are biodegradable.

Output: basic


Input:
Sentence1: Cells are the basic units of the structure and function of living things.
Sentence2: Cells are the basic units of the structure and are biodegradable.

Output: structure


Input:
Sentence1: Cells are the basic units of the structure and function of living things.
Sentence2: Cells are the basic units of the structure and are biodegradable.

Output: units


Input:
Sentence1: harming an animal species has a negative impact on the population size of that species.
Sentence2: Pollution is usually harmful to one or more species of animal or plant.

Output: animal


Input:
Sentence1: Fourty percent of biomass is carbon.
Sentence2: organisms are mostly made out of carbon.

Output: carbon


Input:
Sentence1: a plant requires nutrients to grow.
Sentence2: A rose requires nutrients to grow.

Output: grow


Input:
Sentence1: a plant requires nutrients to grow.
Sentence2: A rose requires nutrients to grow.

Output: nutrients


Input:
Sentence1: a plant requires nutrients to grow.
Sentence2: A rose requires nutrients to grow.

Output: requires


Input:
Sentence1: Pneumonia may be caused by an infection or injury of the lungs.
Sentence2: Smoke inhalation and thermal lung injury cause direct lung injury.

Output: injury


Input:
Sentence1: Pneumonia may be caused by an infection or injury of the lungs.
Sentence2: Smoke inhalation and thermal lung injury cause direct lung injury.

Output: lungs


Input:
Sentence1: Some species of reptiles can go several weeks between meals.
Sentence2: Some species of reptiles can go several weeks between time when bile is diverted into the gallbladder.

Output: Some


Input:
Sentence1: Some species of reptiles can go several weeks between meals.
Sentence2: Some species of reptiles can go several weeks between time when bile is diverted into the gallbladder.

Output: between


Input:
Sentence1: Some species of reptiles can go several weeks between meals.
Sentence2: Some species of reptiles can go several weeks between time when bile is diverted into the gallbladder.

Output: can


Input:
Sentence1: Some species of reptiles can go several weeks between meals.
Sentence2: Some species of reptiles can go several weeks between time when bile is diverted into the gallbladder.

Output: go


Input:
Sentence1: Some species of reptiles can go several weeks between meals.
Sentence2: Some species of reptiles can go several weeks between time when bile is diverted into the gallbladder.

Output: reptiles


Input:
Sentence1: Some species of reptiles can go several weeks between meals.
Sentence2: Some species of reptiles can go several weeks between time when bile is diverted into the gallbladder.

Output: several


Input:
Sentence1: Some species of reptiles can go several weeks between meals.
Sentence2: Some species of reptiles can go several weeks between time when bile is diverted into the gallbladder.

Output: species


Input:
Sentence1: Some species of reptiles can go several weeks between meals.
Sentence2: Some species of reptiles can go several weeks between time when bile is diverted into the gallbladder.

Output: weeks


Input:
Sentence1: An ecosystem can be in a desert, a tropical jungle, an ocean or a pond.
Sentence2: cutting down trees has a negative impact on a jungle.

Output: jungle


Input:
Sentence1: Cell division is how organisms grow and repair themselves.
Sentence2: Mitosisis how organisms grow and repair themselves.

Output: grow


Input:
Sentence1: Cell division is how organisms grow and repair themselves.
Sentence2: Mitosisis how organisms grow and repair themselves.

Output: organisms


Input:
Sentence1: Cell division is how organisms grow and repair themselves.
Sentence2: Mitosisis how organisms grow and repair themselves.

Output: repair


Input:
Sentence1: Cell division is how organisms grow and repair themselves.
Sentence2: Mitosisis how organisms grow and repair themselves.

Output: themselves


Input:
Sentence1: Evolution is a change in the characteristics of living things over time.
Sentence2: Evolution is the process of adaptation.

Output: Evolution


Input:
Sentence1: Radioactive isotopes are commonly used for dating .
Sentence2: isotopes are used to determine the age of fossils.

Output: isotopes


Input:
Sentence1: Bioterrorism is another potential threat in the environment.
Sentence2: Immediate reporting is also required for diseases caused by Category A Bioterrorism agents.

Output: Bioterrorism


Input:
Sentence1: Mollusks are invertebrates and are no exception.
Sentence2: Invertebrates are a major food source for other organisms, including humans.

Output: invertebrates


Input:
Sentence1: a greenhouse is used to protect plants by keeping them warm.
Sentence2: Plants are Earth's producers.

Output: plants


Input:
Sentence1: If there is enough moisture in the clouds, rain is produced.
Sentence2: Clouds lacking water reduces rainfall.

Output: clouds


Input:
Sentence1: Chlorine bleach is ideal for treating water.
Sentence2: Chlorine bleach removes harmful substances from water before drinking.

Output: Chlorine


Input:
Sentence1: Chlorine bleach is ideal for treating water.
Sentence2: Chlorine bleach removes harmful substances from water before drinking.

Output: bleach


Input:
Sentence1: When a substance melts, it changes phase from a solid to a liquid by the application of heat.
Sentence2: Changing the phase of a solid can be done by adding heat energy.

Output: changes


Input:
Sentence1: When a substance melts, it changes phase from a solid to a liquid by the application of heat.
Sentence2: Changing the phase of a solid can be done by adding heat energy.

Output: phase


Input:
Sentence1: When a substance melts, it changes phase from a solid to a liquid by the application of heat.
Sentence2: Changing the phase of a solid can be done by adding heat energy.

Output: solid


Input:
Sentence1: Then dawn breaks and with it comes daylight, illumined by the sun.
Sentence2: when the seasons change from summer to fall, the amount illumined by the sun will decrease.

Output: illumined


Input:
Sentence1: Then dawn breaks and with it comes daylight, illumined by the sun.
Sentence2: when the seasons change from summer to fall, the amount illumined by the sun will decrease.

Output: sun


Input:
Sentence1: Population density is the average number of individuals per unit of area or volume.
Sentence2: Economy is affected by population size and density.

Output: Population


Input:
Sentence1: Population density is the average number of individuals per unit of area or volume.
Sentence2: Economy is affected by population size and density.

Output: density


Input:
Sentence1: Evolution occurs in response to a change in the environment.
Sentence2: Different environments Life is a changing phenomenon.

Output: environment


Input:
Sentence1: Most plants grow roots down into the soil to absorb water and minerals.
Sentence2: Anchors plants, absorbs water and minerals.

Output: absorb


Input:
Sentence1: Ants communicate with chemicals called pheromones.
Sentence2: ants communicate with the colony with pheremone trails.

Output: pheromones


Input:
Sentence1: Inside the pancreas are clusters of cells called islets of Langerhans.
Sentence2: Negative feedback controls insulin secretion by the organ that has the islets of Langerhans.

Output: Langerhans


Input:
Sentence1: Inside the pancreas are clusters of cells called islets of Langerhans.
Sentence2: Negative feedback controls insulin secretion by the organ that has the islets of Langerhans.

Output: islets


Input:
Sentence1: building housing developments usually requires replacing animal habitats.
Sentence2: building housing developments can require replacing the forest home of martens.

Output: building


Input:
Sentence1: building housing developments usually requires replacing animal habitats.
Sentence2: building housing developments can require replacing the forest home of martens.

Output: developments


Input:
Sentence1: building housing developments usually requires replacing animal habitats.
Sentence2: building housing developments can require replacing the forest home of martens.

Output: housing


Input:
Sentence1: building housing developments usually requires replacing animal habitats.
Sentence2: building housing developments can require replacing the forest home of martens.

Output: replacing


Input:
Sentence1: building housing developments usually requires replacing animal habitats.
Sentence2: building housing developments can require replacing the forest home of martens.

Output: requires


Input:
Sentence1: nerves can be used to feel heat and pressure on the skin.
Sentence2: Nerves can feel heat and pressure on the epidermis.

Output: feel


Input:
Sentence1: nerves can be used to feel heat and pressure on the skin.
Sentence2: Nerves can feel heat and pressure on the epidermis.

Output: heat


Input:
Sentence1: nerves can be used to feel heat and pressure on the skin.
Sentence2: Nerves can feel heat and pressure on the epidermis.

Output: nerves


Input:
Sentence1: nerves can be used to feel heat and pressure on the skin.
Sentence2: Nerves can feel heat and pressure on the epidermis.

Output: pressure


Input:
Sentence1: a solar panel converts sunlight into electricity.
Sentence2: Sunlight is composed of photons, or particles of solar energy.

Output: sunlight


Input:
Sentence1: a wheeled vehicle requires smooth surfaces.
Sentence2: Cars are vehicles and trucks are vehicles.

Output: vehicle


Input:
Sentence1: Cells are the basic units of the structure and function of living things.
Sentence2: life requires cells.

Output: Cells


Input:
Sentence1: Good sources of sugars are sugar, glucose, honey and sweets.
Sentence2: honey has sugar.

Output: honey


Input:
Sentence1: a scale is used for measuring weight.
Sentence2: a scale can measure kilograms.

Output: measuring


Input:
Sentence1: a scale is used for measuring weight.
Sentence2: a scale can measure kilograms.

Output: scale


Input:
Sentence1: if soil is permeable then water easily flows through that soil.
Sentence2: The suitability for septic drainfields is poor because of slow permeability.

Output: permeable


Input:
Sentence1: Hydrogen bonds cause water to expand when it freezes.
Sentence2: Hydrogen bonds Hydrogen bonds are primarily electrostatic in origin.

Output: Hydrogen


Input:
Sentence1: Hydrogen bonds cause water to expand when it freezes.
Sentence2: Hydrogen bonds Hydrogen bonds are primarily electrostatic in origin.

Output: bonds


Input:
Sentence1: if an animal sweats then that animal 's bodily water decreases.
Sentence2: Many animals have developed ways of getting rid of extra heat by sweating or panting.

Output: sweats


Input:
Sentence1: air pollution can cause the pH of soil to decrease.
Sentence2: Some soils are more sensitive than others to the acid dropped by air pollution.

Output: air


Input:
Sentence1: air pollution can cause the pH of soil to decrease.
Sentence2: Some soils are more sensitive than others to the acid dropped by air pollution.

Output: pollution


Input:
Sentence1: some light bulbs convert electricity into light and heat energy.
Sentence2: Halogen bulbs convert electricity into heat.

Output: convert


Input:
Sentence1: some light bulbs convert electricity into light and heat energy.
Sentence2: Halogen bulbs convert electricity into heat.

Output: electricity


Input:
Sentence1: Rabbits' brown summer fur is replaced with fur that is greyer.
Sentence2: If seeds stick to a rabbit then that seed will be transported by the animal.

Output: Rabbits'


Input:
Sentence1: Protists Protists are single-celled organisms.
Sentence2: Most single-celled organisms have motility.

Output: organisms


Input:
Sentence1: Protists Protists are single-celled organisms.
Sentence2: Most single-celled organisms have motility.

Output: single-celled


Input:
Sentence1: DNA contains genetic instructions for proteins, and RNA helps assemble the proteins.
Sentence2: DNA DNA is deoxyribonucleic acid.

Output: DNA


Input:
Sentence1: Fire is a chemical reaction.
Sentence2: Fire requires activation energy to get started.

Output: Fire


Input:
Sentence1: Insect wings are attached to the dorsal side of their thorax.
Sentence2: wings are attached to the dorsal side of the insect.

Output: dorsal


Input:
Sentence1: planting trees has a positive impact on an ecosystem.
Sentence2: planting trees has a positive impact on biodiversity.

Output: impact


Input:
Sentence1: planting trees has a positive impact on an ecosystem.
Sentence2: planting trees has a positive impact on biodiversity.

Output: planting


Input:
Sentence1: planting trees has a positive impact on an ecosystem.
Sentence2: planting trees has a positive impact on biodiversity.

Output: positive


Input:
Sentence1: planting trees has a positive impact on an ecosystem.
Sentence2: planting trees has a positive impact on biodiversity.

Output: trees


Input:
Sentence1: the volume of an object can be used to describe the size of that object.
Sentence2: Volume means how much space the ingredient takes up.

Output: volume


Input:
Sentence1: Cell phones are a distraction to driving.
Sentence2: Using a cell phone while driving can cause crashes.

Output: Cell


Input:
Sentence1: Cell phones are a distraction to driving.
Sentence2: Using a cell phone while driving can cause crashes.

Output: phones


Input:
Sentence1: Muscle contraction occurs when muscle fibers get shorter.
Sentence2: muscles activate before fibers get shorter.

Output: fibers


Input:
Sentence1: Pregnancy is the carrying of one or more offspring from fertilization until birth.
Sentence2: Infertility is also the inability to carry a pregnancy to full term.

Output: Pregnancy


Input:
Sentence1: Coastal dunes are the product of wind-deposited sand anchored by sparse mats of vegetation.
Sentence2: Deposited sand anchored by sparse mats of vegetation form sand dunes.

Output: anchored


Input:
Sentence1: Coastal dunes are the product of wind-deposited sand anchored by sparse mats of vegetation.
Sentence2: Deposited sand anchored by sparse mats of vegetation form sand dunes.

Output: mats


Input:
Sentence1: Coastal dunes are the product of wind-deposited sand anchored by sparse mats of vegetation.
Sentence2: Deposited sand anchored by sparse mats of vegetation form sand dunes.

Output: sand


Input:
Sentence1: Coastal dunes are the product of wind-deposited sand anchored by sparse mats of vegetation.
Sentence2: Deposited sand anchored by sparse mats of vegetation form sand dunes.

Output: sparse


Input:
Sentence1: Coastal dunes are the product of wind-deposited sand anchored by sparse mats of vegetation.
Sentence2: Deposited sand anchored by sparse mats of vegetation form sand dunes.

Output: vegetation


Input:
Sentence1: Genetic diversity is really a form of biodiversity.
Sentence2: cross-pollination increases biodiversity.

Output: biodiversity


Input:
Sentence1: nerves can be used to feel heat and pressure on the skin.
Sentence2: nerves can be used to feel heat and pressure on the epidermal layer.

Output: feel


Input:
Sentence1: nerves can be used to feel heat and pressure on the skin.
Sentence2: nerves can be used to feel heat and pressure on the epidermal layer.

Output: heat


Input:
Sentence1: nerves can be used to feel heat and pressure on the skin.
Sentence2: nerves can be used to feel heat and pressure on the epidermal layer.

Output: nerves


Input:
Sentence1: nerves can be used to feel heat and pressure on the skin.
Sentence2: nerves can be used to feel heat and pressure on the epidermal layer.

Output: pressure


Input:
Sentence1: Reptile parents provide little if any care to their young.
Sentence2: Crocodilian mothers provide the most parental care compared to any other reptiles.

Output: Reptile


Input:
Sentence1: Reptile parents provide little if any care to their young.
Sentence2: Crocodilian mothers provide the most parental care compared to any other reptiles.

Output: care


Input:
Sentence1: Reptile parents provide little if any care to their young.
Sentence2: Crocodilian mothers provide the most parental care compared to any other reptiles.

Output: parents


Input:
Sentence1: Reptile parents provide little if any care to their young.
Sentence2: Crocodilian mothers provide the most parental care compared to any other reptiles.

Output: provide


Input:
Sentence1: Mating is generally preceded by courtship.
Sentence2: courtship can result in offspring.

Output: courtship


Input:
Sentence1: a solution is formed by one substance being dissolved in another substance.
Sentence2: Solvents are substances, usually liquid, that dissolve other substances.

Output: substance


Input:
Sentence1: Food has energy in it.
Sentence2: absorbing food causes objects to heat.

Output: Food


Input:
Sentence1: When carbon dioxide is in water, it creates carbonic acid.
Sentence2: a cavern is formed by carbon dioxide is in groundwater seeping through rock and dissolving limestone.

Output: carbon


Input:
Sentence1: When carbon dioxide is in water, it creates carbonic acid.
Sentence2: a cavern is formed by carbon dioxide is in groundwater seeping through rock and dissolving limestone.

Output: dioxide


Input:
Sentence1: being distracted while driving can cause people to crash their car.
Sentence2: Using a cell phone while driving can cause crashes.

Output: crash


Input:
Sentence1: being distracted while driving can cause people to crash their car.
Sentence2: Using a cell phone while driving can cause crashes.

Output: driving


Input:
Sentence1: Fractures heal when osteoclasts form new bone.
Sentence2: Bones are made of calcium and protein.

Output: bone


Input:
Sentence1: astronauts require preserved food for extended flights.
Sentence2: food is irradiated for space travel.

Output: food


Input:
Sentence1: Coral reefs provide food and shelter to many ocean organisms.
Sentence2: warm shallow waters provide food and shelter to many ocean organisms.

Output: food


Input:
Sentence1: Coral reefs provide food and shelter to many ocean organisms.
Sentence2: warm shallow waters provide food and shelter to many ocean organisms.

Output: many


Input:
Sentence1: Coral reefs provide food and shelter to many ocean organisms.
Sentence2: warm shallow waters provide food and shelter to many ocean organisms.

Output: ocean


Input:
Sentence1: Coral reefs provide food and shelter to many ocean organisms.
Sentence2: warm shallow waters provide food and shelter to many ocean organisms.

Output: organisms


Input:
Sentence1: Coral reefs provide food and shelter to many ocean organisms.
Sentence2: warm shallow waters provide food and shelter to many ocean organisms.

Output: provide


Input:
Sentence1: Coral reefs provide food and shelter to many ocean organisms.
Sentence2: warm shallow waters provide food and shelter to many ocean organisms.

Output: shelter


Input:
Sentence1: Lancelet larvae are free-swimming.
Sentence2: some larvae lack a hardened backbone.

Output: larvae


Input:
Sentence1: Birds move their wings using muscles in the chest.
Sentence2: Bird flap their wings more quickly to fly faster.

Output: Birds


Input:
Sentence1: hiding can be used for avoiding predators.
Sentence2: hiding can be used for staying away from predators.

Output: can


Input:
Sentence1: hiding can be used for avoiding predators.
Sentence2: hiding can be used for staying away from predators.

Output: hiding


Input:
Sentence1: hiding can be used for avoiding predators.
Sentence2: hiding can be used for staying away from predators.

Output: used


Input:
Sentence1: Puberty is the period during which humans become sexually mature.
Sentence2: Breasts develop during puberty .

Output: Puberty


Input:
Sentence1: Humans use evaporation of water, sweat, to cool their bodies.
Sentence2: evaporation cools the body.

Output: evaporation


Input:
Sentence1: Autotrophs are also called producers.
Sentence2: autotrophs start food chains.

Output: Autotrophs


Input:
Sentence1: Most modern gymnosperms are trees with woody trunks.
Sentence2: a living thing with four divisions can be trees with woody trunks.

Output: trees


Input:
Sentence1: Most modern gymnosperms are trees with woody trunks.
Sentence2: a living thing with four divisions can be trees with woody trunks.

Output: trunks


Input:
Sentence1: Most modern gymnosperms are trees with woody trunks.
Sentence2: a living thing with four divisions can be trees with woody trunks.

Output: woody


Input:
Sentence1: Chloroplasts Chloroplasts contain photosynthetic pigments.
Sentence2: pigments are found in algae.

Output: pigments


Input:
Sentence1: Organisms that live in marine biomes must be adapted to the salt in the water.
Sentence2: Organisms or living beings are literally things that are alive.

Output: Organisms


Input:
Sentence1: Echinoderms use pheromones to communicate with each other.
Sentence2: Another group of echinoderms are the echinoids.

Output: Echinoderms


Input:
Sentence1: Pneumonia may be caused by an infection or injury of the lungs.
Sentence2: Streptococcus can infect the lungs following injury.

Output: infection


Input:
Sentence1: Pneumonia may be caused by an infection or injury of the lungs.
Sentence2: Streptococcus can infect the lungs following injury.

Output: injury


Input:
Sentence1: Pneumonia may be caused by an infection or injury of the lungs.
Sentence2: Streptococcus can infect the lungs following injury.

Output: lungs


Input:
Sentence1: Plants live just about everywhere on Earth.
Sentence2: Epiphytes are plants that live on other plants.

Output: Plants


Input:
Sentence1: producing thrust causes something to move.
Sentence2: Then the engine spins up and starts producing thrust.

Output: producing


Input:
Sentence1: producing thrust causes something to move.
Sentence2: Then the engine spins up and starts producing thrust.

Output: thrust


Input:
Sentence1: global warming is when worldwide temperature increases.
Sentence2: When worldwide temperature increases, mass exctinction occurs.

Output: increases


Input:
Sentence1: global warming is when worldwide temperature increases.
Sentence2: When worldwide temperature increases, mass exctinction occurs.

Output: temperature


Input:
Sentence1: global warming is when worldwide temperature increases.
Sentence2: When worldwide temperature increases, mass exctinction occurs.

Output: worldwide


Input:
Sentence1: Animals able to lay shelled eggs are called amniotes .
Sentence2: Reptiles are called amniotes.

Output: amniotes


Input:
Sentence1: Most people can survive only a few days without water.
Sentence2: most people can survive only a few days away from earth.

Output: days


Input:
Sentence1: Most people can survive only a few days without water.
Sentence2: most people can survive only a few days away from earth.

Output: people


Input:
Sentence1: Most people can survive only a few days without water.
Sentence2: most people can survive only a few days away from earth.

Output: survive


Input:
Sentence1: Electrical exposure causing death is referred to as electrocution.
Sentence2: electrical exposure can can cause harm to an organism.

Output: Electrical


Input:
Sentence1: Electrical exposure causing death is referred to as electrocution.
Sentence2: electrical exposure can can cause harm to an organism.

Output: exposure


Input:
Sentence1: From the bladder, urine leaves the body.
Sentence2: The bladder empties through a sphincter in the process of urination.

Output: bladder


Input:
Sentence1: Blood is a fluid connective tissue.
Sentence2: Blood carries oxygen to the brain.

Output: Blood


Input:
Sentence1: Lung cancer continues to kill, despite modern therapies.
Sentence2: tobacco smoke can kill.

Output: kill


Input:
Sentence1: an anemometer is used to measure wind speed.
Sentence2: Anemometers are used to measure knots.

Output: anemometer


Input:
Sentence1: an anemometer is used to measure wind speed.
Sentence2: Anemometers are used to measure knots.

Output: measure


Input:
Sentence1: an anemometer is used to measure wind speed.
Sentence2: Anemometers are used to measure knots.

Output: used


Input:
Sentence1: Alternation of generations allows for both asexual and sexual reproduction.
Sentence2: Reproduction Organisms create young of their species by reproduction.

Output: reproduction


Input:
Sentence1: For example vinegar is dilute acetic acid.
Sentence2: Vinegar changes the color of litmus paper from blue to red.

Output: vinegar


Input:
Sentence1: condensing causes a liquid to form.
Sentence2: Condensing is a gas turning into a liquid.

Output: liquid


Input:
Sentence1: hitting an object causes the particles in that object to vibrate.
Sentence2: a gong's resonance comes from particles vibrating.

Output: particles


Input:
Sentence1: hitting an object causes the particles in that object to vibrate.
Sentence2: a gong's resonance comes from particles vibrating.

Output: vibrate


Input:
Sentence1: Constriction occurs when the muscular walls of blood vessels contract.
Sentence2: Constriction happens when the muscular walls of arteries and veins contract.

Output: Constriction


Input:
Sentence1: Constriction occurs when the muscular walls of blood vessels contract.
Sentence2: Constriction happens when the muscular walls of arteries and veins contract.

Output: muscular


Input:
Sentence1: Constriction occurs when the muscular walls of blood vessels contract.
Sentence2: Constriction happens when the muscular walls of arteries and veins contract.

Output: walls


Input:
Sentence1: Many of the processes of homeostasis are mediated by hormones.
Sentence2: homeostasis mediates cell activities.

Output: homeostasis


Input:
Sentence1: Birds move their wings using muscles in the chest.
Sentence2: Birds also steer by changing their wing configuration.

Output: Birds


Input:
Sentence1: Birds move their wings using muscles in the chest.
Sentence2: Birds also steer by changing their wing configuration.

Output: wings


Input:
Sentence1: Water is heated to the boiling point and changes to steam.
Sentence2: boiling changes a liquid into steam.

Output: steam


Input:
Sentence1: changes in the pH of soil can cause plants to die.
Sentence2: Changes in pH of soil can cause extreme shortages of food.

Output: cause


Input:
Sentence1: changes in the pH of soil can cause plants to die.
Sentence2: Changes in pH of soil can cause extreme shortages of food.

Output: changes


Input:
Sentence1: changes in the pH of soil can cause plants to die.
Sentence2: Changes in pH of soil can cause extreme shortages of food.

Output: pH


Input:
Sentence1: changes in the pH of soil can cause plants to die.
Sentence2: Changes in pH of soil can cause extreme shortages of food.

Output: soil


Input:
Sentence1: pasteurization reduces the amount of bacteria in milk.
Sentence2: Pasteurization reduces the amount of unicellular organisms in milk.

Output: amount


Input:
Sentence1: pasteurization reduces the amount of bacteria in milk.
Sentence2: Pasteurization reduces the amount of unicellular organisms in milk.

Output: milk


Input:
Sentence1: pasteurization reduces the amount of bacteria in milk.
Sentence2: Pasteurization reduces the amount of unicellular organisms in milk.

Output: pasteurization


Input:
Sentence1: pasteurization reduces the amount of bacteria in milk.
Sentence2: Pasteurization reduces the amount of unicellular organisms in milk.

Output: reduces


Input:
Sentence1: Secondary meristem is located within and around the vascular tissues.
Sentence2: secondary meristem is located within and around blood vessels.

Output: Secondary


Input:
Sentence1: Secondary meristem is located within and around the vascular tissues.
Sentence2: secondary meristem is located within and around blood vessels.

Output: around


Input:
Sentence1: Secondary meristem is located within and around the vascular tissues.
Sentence2: secondary meristem is located within and around blood vessels.

Output: located


Input:
Sentence1: Secondary meristem is located within and around the vascular tissues.
Sentence2: secondary meristem is located within and around blood vessels.

Output: meristem


Input:
Sentence1: Secondary meristem is located within and around the vascular tissues.
Sentence2: secondary meristem is located within and around blood vessels.

Output: within


Input:
Sentence1: Estuaries display characteristics of both marine and freshwater biomes.
Sentence2: freshwater environments have little salt.

Output: freshwater


Input:
Sentence1: global warming is when worldwide temperature increases.
Sentence2: Mass extinction occurs in the ice age and global warming periods.

Output: global


Input:
Sentence1: global warming is when worldwide temperature increases.
Sentence2: Mass extinction occurs in the ice age and global warming periods.

Output: warming


Input:
Sentence1: Bile , synthesized by the liver, contains HCO3-, bile salts and bile pigments.
Sentence2: The liver reduces the acidity of food entering from the highly acidic stomach.

Output: liver


Input:
Sentence1: cooking food requires adding heat energy.
Sentence2: Heat energy makes digestion easier.

Output: energy


Input:
Sentence1: cooking food requires adding heat energy.
Sentence2: Heat energy makes digestion easier.

Output: heat


Input:
Sentence1: Some viruses live in a dormant state inside the body.
Sentence2: a virus can live in the brain.

Output: viruses


Input:
Sentence1: Reproduction is the process by which living things give rise to offspring.
Sentence2: Reproduction is the process by which living things give birth to babies.

Output: Reproduction


Input:
Sentence1: Reproduction is the process by which living things give rise to offspring.
Sentence2: Reproduction is the process by which living things give birth to babies.

Output: living


Input:
Sentence1: Reproduction is the process by which living things give rise to offspring.
Sentence2: Reproduction is the process by which living things give birth to babies.

Output: process


Input:
Sentence1: Reproduction is the process by which living things give rise to offspring.
Sentence2: Reproduction is the process by which living things give birth to babies.

Output: things


Input:
Sentence1: Reproduction is the process by which living things give rise to offspring.
Sentence2: Reproduction is the process by which living things give birth to babies.

Output: which


Input:
Sentence1: a greenhouse is used to protect plants by keeping them warm.
Sentence2: Flower size varies by plant.

Output: plants


Input:
Sentence1: RNA polymerase joins the RNA nucleotides together.
Sentence2: DNA contains genetic instructions for proteins where polymerase joins the nucleotides together.

Output: joins


Input:
Sentence1: RNA polymerase joins the RNA nucleotides together.
Sentence2: DNA contains genetic instructions for proteins where polymerase joins the nucleotides together.

Output: nucleotides


Input:
Sentence1: RNA polymerase joins the RNA nucleotides together.
Sentence2: DNA contains genetic instructions for proteins where polymerase joins the nucleotides together.

Output: polymerase


Input:
Sentence1: RNA polymerase joins the RNA nucleotides together.
Sentence2: DNA contains genetic instructions for proteins where polymerase joins the nucleotides together.

Output: together


Input:
Sentence1: Public Transportation systems move people.
Sentence2: transportation is used for moving things.

Output: move


Input:
Sentence1: Bicycle A bicycle is a two wheeled vehicle.
Sentence2: A bicycle requires a smooth surface.

Output: bicycle


Input:
Sentence1: Amphibians have permeable skin that easily absorbs substances from the environment.
Sentence2: permeable skin easily absorbs air to breathe through.

Output: absorbs


Input:
Sentence1: Amphibians have permeable skin that easily absorbs substances from the environment.
Sentence2: permeable skin easily absorbs air to breathe through.

Output: easily


Input:
Sentence1: Amphibians have permeable skin that easily absorbs substances from the environment.
Sentence2: permeable skin easily absorbs air to breathe through.

Output: permeable


Input:
Sentence1: Amphibians have permeable skin that easily absorbs substances from the environment.
Sentence2: permeable skin easily absorbs air to breathe through.

Output: skin


Input:
Sentence1: All sounds are vibrations.
Sentence2: a radio converts electrical energy into sound.

Output: sounds


Input:
Sentence1: Fertilization occurs when a sperm and an egg fuse to form a diploid zygote.
Sentence2: Haploid gametes unite to form diploid zygote.

Output: diploid


Input:
Sentence1: Fertilization occurs when a sperm and an egg fuse to form a diploid zygote.
Sentence2: Haploid gametes unite to form diploid zygote.

Output: form


Input:
Sentence1: Fertilization occurs when a sperm and an egg fuse to form a diploid zygote.
Sentence2: Haploid gametes unite to form diploid zygote.

Output: zygote


Input:
Sentence1: Glucose is used for energy by the cells of most organisms.
Sentence2: carbohydrates are converted into glucose.

Output: Glucose


Input:
Sentence1: Water is essential for all life on Earth.
Sentence2: H2O is needed for all life on Eartth.

Output: Earth


Input:
Sentence1: microorganisms can cause infections.
Sentence2: For example, an infection of a limb is usually treated with antibiotics.

Output: infections


Input:
Sentence1: treating water is used to remove harmful substances before drinking.
Sentence2: treating water is used to remove chlorine, pesticides, and heavy metals before drinking.

Output: before


Input:
Sentence1: treating water is used to remove harmful substances before drinking.
Sentence2: treating water is used to remove chlorine, pesticides, and heavy metals before drinking.

Output: drinking


Input:
Sentence1: treating water is used to remove harmful substances before drinking.
Sentence2: treating water is used to remove chlorine, pesticides, and heavy metals before drinking.

Output: remove


Input:
Sentence1: treating water is used to remove harmful substances before drinking.
Sentence2: treating water is used to remove chlorine, pesticides, and heavy metals before drinking.

Output: treating


Input:
Sentence1: treating water is used to remove harmful substances before drinking.
Sentence2: treating water is used to remove chlorine, pesticides, and heavy metals before drinking.

Output: water


Input:
Sentence1: The pancreas is an organ that is part of our digestive system.
Sentence2: The pancreas is important for breaking food into nutrients for our bodies.

Output: pancreas


Input:
Sentence1: a black hole is formed by a high-mass star collapses.
Sentence2: Black holes are formed from dead stars.

Output: black


Input:
Sentence1: a black hole is formed by a high-mass star collapses.
Sentence2: Black holes are formed from dead stars.

Output: formed


Input:
Sentence1: a black hole is formed by a high-mass star collapses.
Sentence2: Black holes are formed from dead stars.

Output: hole


Input:
Sentence1: the vomiting reflex is used to remove toxic material from the stomach before it is absorbed.
Sentence2: loss of balance are results of toxic material in the stomach.

Output: material


Input:
Sentence1: the vomiting reflex is used to remove toxic material from the stomach before it is absorbed.
Sentence2: loss of balance are results of toxic material in the stomach.

Output: toxic


Input:
Sentence1: Cancer is a disease that occurs when the cell cycle is no longer regulated.
Sentence2: Brain tumors occur when the cell cycle is no longer regulated.

Output: cell


Input:
Sentence1: Cancer is a disease that occurs when the cell cycle is no longer regulated.
Sentence2: Brain tumors occur when the cell cycle is no longer regulated.

Output: cycle


Input:
Sentence1: Cancer is a disease that occurs when the cell cycle is no longer regulated.
Sentence2: Brain tumors occur when the cell cycle is no longer regulated.

Output: longer


Input:
Sentence1: Cancer is a disease that occurs when the cell cycle is no longer regulated.
Sentence2: Brain tumors occur when the cell cycle is no longer regulated.

Output: no


Input:
Sentence1: Cancer is a disease that occurs when the cell cycle is no longer regulated.
Sentence2: Brain tumors occur when the cell cycle is no longer regulated.

Output: regulated


Input:
Sentence1: Water expands as it freezes into ice.
Sentence2: Water causes rocks to crack by turning to ice in its openings.

Output: Water


Input:
Sentence1: Among families with children the average number of offspring is 1.8.
Sentence2: information in an organism's chromosomes cause genetic traits to be passed down to that organism's children.

Output: children


Input:
Sentence1: Cotton and shredded tissue paper make excellent nesting materials.
Sentence2: Cotton and shredded tissue paper are used for protecting young by birds.

Output: Cotton


Input:
Sentence1: Cotton and shredded tissue paper make excellent nesting materials.
Sentence2: Cotton and shredded tissue paper are used for protecting young by birds.

Output: paper


Input:
Sentence1: Cotton and shredded tissue paper make excellent nesting materials.
Sentence2: Cotton and shredded tissue paper are used for protecting young by birds.

Output: shredded


Input:
Sentence1: Cotton and shredded tissue paper make excellent nesting materials.
Sentence2: Cotton and shredded tissue paper are used for protecting young by birds.

Output: tissue


Input:
Sentence1: Plants respond to daily and seasonal cycles and to disease.
Sentence2: water stress can be from daily or seasonal cycles.

Output: cycles


Input:
Sentence1: Plants respond to daily and seasonal cycles and to disease.
Sentence2: water stress can be from daily or seasonal cycles.

Output: daily


Input:
Sentence1: Plants respond to daily and seasonal cycles and to disease.
Sentence2: water stress can be from daily or seasonal cycles.

Output: seasonal


Input:
Sentence1: the mass of a planet causes the pull of gravity on that planet.
Sentence2: Jupiter has a greater gravitational pull than earth.

Output: gravity


Input:
Sentence1: the mass of a planet causes the pull of gravity on that planet.
Sentence2: Jupiter has a greater gravitational pull than earth.

Output: pull


Input:
Sentence1: Plants live just about everywhere on Earth.
Sentence2: Air is everywhere in the earth's atmosphere.

Output: Earth


Input:
Sentence1: harming an animal species causes that animal 's population to decrease.
Sentence2: Regular overfishing can decline an animal population to the point of extinction.

Output: decrease


Input:
Sentence1: harming an animal species causes that animal 's population to decrease.
Sentence2: Regular overfishing can decline an animal population to the point of extinction.

Output: population


Input:
Sentence1: sugar causes food to taste sweet.
Sentence2: sugar is in fruit.

Output: sugar


Input:
Sentence1: Albumin is a type of protein found in body tissues and fluids.
Sentence2: DNA and RNA work together to create albumin.

Output: Albumin


Input:
Sentence1: Dilation occurs when cell walls relax.
Sentence2: Dilation is often uncomfortable.

Output: Dilation


Input:
Sentence1: Gene flow occurs when individuals move into or out of a population.
Sentence2: when individuals move into or out of a population, it's random.

Output: individuals


Input:
Sentence1: Gene flow occurs when individuals move into or out of a population.
Sentence2: when individuals move into or out of a population, it's random.

Output: into


Input:
Sentence1: Gene flow occurs when individuals move into or out of a population.
Sentence2: when individuals move into or out of a population, it's random.

Output: move


Input:
Sentence1: Gene flow occurs when individuals move into or out of a population.
Sentence2: when individuals move into or out of a population, it's random.

Output: out


Input:
Sentence1: Gene flow occurs when individuals move into or out of a population.
Sentence2: when individuals move into or out of a population, it's random.

Output: population


Input:
Sentence1: Communities consist of populations of different species.
Sentence2: Within any species, there is genetic diversity.

Output: species


Input:
Sentence1: All life relies on a relatively narrow range of pH, or acidity.
Sentence2: Human life is dependent life.

Output: life


Input:
Sentence1: If the wire heats up it can damage the insulation or cause a fire.
Sentence2: electrical current running through a wire can damage the insulation or cause a fire.

Output: can


Input:
Sentence1: If the wire heats up it can damage the insulation or cause a fire.
Sentence2: electrical current running through a wire can damage the insulation or cause a fire.

Output: cause


Input:
Sentence1: If the wire heats up it can damage the insulation or cause a fire.
Sentence2: electrical current running through a wire can damage the insulation or cause a fire.

Output: damage


Input:
Sentence1: If the wire heats up it can damage the insulation or cause a fire.
Sentence2: electrical current running through a wire can damage the insulation or cause a fire.

Output: fire


Input:
Sentence1: If the wire heats up it can damage the insulation or cause a fire.
Sentence2: electrical current running through a wire can damage the insulation or cause a fire.

Output: insulation


Input:
Sentence1: Along with water, minerals are lost in the urine.
Sentence2: minerals are excreted through the urinary system.

Output: minerals


Input:
Sentence1: Mutations that lead to cancer usually occur in genes that control the cell cycle.
Sentence2: Mitosis is part of the cell cycle.

Output: cell


Input:
Sentence1: Mutations that lead to cancer usually occur in genes that control the cell cycle.
Sentence2: Mitosis is part of the cell cycle.

Output: cycle


Input:
Sentence1: ultraviolet light causes sunburn.
Sentence2: Sunburns cause the skin to become red and painful to the touch.

Output: sunburn


Input:
Sentence1: Building insulation is a cellulose material made of ground computer paper and cardboard boxes.
Sentence2: Cellulose material can be used to keep a home warm.

Output: cellulose


Input:
Sentence1: Building insulation is a cellulose material made of ground computer paper and cardboard boxes.
Sentence2: Cellulose material can be used to keep a home warm.

Output: material


Input:
Sentence1: a plant requires sunlight to grow.
Sentence2: Vineyards are vertically trellised to promote plant growth.

Output: grow


Input:
Sentence1: a plant requires sunlight to grow.
Sentence2: Vineyards are vertically trellised to promote plant growth.

Output: plant


Input:
Sentence1: Landscape is in turn altered by climate and weather.
Sentence2: Rocks interacting with wind over time causes landscapes to be altered.

Output: Landscape


Input:
Sentence1: Landscape is in turn altered by climate and weather.
Sentence2: Rocks interacting with wind over time causes landscapes to be altered.

Output: altered


Input:
Sentence1: being exposed to wind can cause erosion of soil.
Sentence2: On bare, dry soil, wind erosion can remove significant quantities of topsoil.

Output: soil


Input:
Sentence1: Cells are the microscopic building blocks of organisms.
Sentence2: Cells are the microscopic building blocks of fish.

Output: Cells


Input:
Sentence1: Cells are the microscopic building blocks of organisms.
Sentence2: Cells are the microscopic building blocks of fish.

Output: are


Input:
Sentence1: Cells are the microscopic building blocks of organisms.
Sentence2: Cells are the microscopic building blocks of fish.

Output: blocks


Input:
Sentence1: Cells are the microscopic building blocks of organisms.
Sentence2: Cells are the microscopic building blocks of fish.

Output: building


Input:
Sentence1: Cells are the microscopic building blocks of organisms.
Sentence2: Cells are the microscopic building blocks of fish.

Output: microscopic


Input:
Sentence1: Every member of every species needs to meet the challenges of survival and of reproduction.
Sentence2: an animal must find a mate to ensure survival.

Output: survival


Input:
Sentence1: eating food that contains pesticides can have a negative impact on humans.
Sentence2: Pesticides are chemicals that kill pests.

Output: pesticides


Input:
Sentence1: when a hurricane moves over land , that hurricane will decrease in strength.
Sentence2: Hurricanes form over the warm tropical water in ocean and die down when they move over land.

Output: land


Input:
Sentence1: when a hurricane moves over land , that hurricane will decrease in strength.
Sentence2: Hurricanes form over the warm tropical water in ocean and die down when they move over land.

Output: over


Input:
Sentence1: planting trees has a positive impact on an ecosystem.
Sentence2: planting trees has a positive impact on humans.

Output: planting


Input:
Sentence1: planting trees has a positive impact on an ecosystem.
Sentence2: planting trees has a positive impact on humans.

Output: trees


Input:
Sentence1: Spikes are forceful the tidal waves of electric current.
Sentence2: spikes come from tidal energy.

Output: Spikes


Input:
Sentence1: Petals attract pollinators to the flower.
Sentence2: Bees are the main pollinator.

Output: pollinators


Input:
Sentence1: Cottages are heated by gas space heat or gas furnaces.
Sentence2: gas expands after going through a furnace into a cottage.

Output: Cottages


Input:
Sentence1: Cottages are heated by gas space heat or gas furnaces.
Sentence2: gas expands after going through a furnace into a cottage.

Output: furnaces


Input:
Sentence1: Carbon dioxide is the primary greenhouse gas.
Sentence2: greenhouse gas concentrations in the air have increased over the last decade dramatically.

Output: gas


Input:
Sentence1: Carbon dioxide is the primary greenhouse gas.
Sentence2: greenhouse gas concentrations in the air have increased over the last decade dramatically.

Output: greenhouse


Input:
Sentence1: building housing developments usually requires replacing animal habitats.
Sentence2: Replacing animal habitats skyrocketed around the facilities.

Output: animal


Input:
Sentence1: building housing developments usually requires replacing animal habitats.
Sentence2: Replacing animal habitats skyrocketed around the facilities.

Output: habitats


Input:
Sentence1: building housing developments usually requires replacing animal habitats.
Sentence2: Replacing animal habitats skyrocketed around the facilities.

Output: replacing


Input:
Sentence1: telephones are used for communication by two people by transmitting sound.
Sentence2: Generally, a telephone is any device which conveys sound over a distance.

Output: sound


Input:
Sentence1: a plant requires water to grow.
Sentence2: a plant requires Clouds to grow.

Output: a


Input:
Sentence1: a plant requires water to grow.
Sentence2: a plant requires Clouds to grow.

Output: grow


Input:
Sentence1: a plant requires water to grow.
Sentence2: a plant requires Clouds to grow.

Output: plant


Input:
Sentence1: a plant requires water to grow.
Sentence2: a plant requires Clouds to grow.

Output: requires


Input:
Sentence1: electrical current running through a wire causes that wire to heat up.
Sentence2: High currents allow too much power, or electrical energy to be wasted in wires in the form of heat.

Output: electrical


Input:
Sentence1: matter vibrating can cause sound.
Sentence2: Energy strikes the molecule, causing it to vibrate more vigorously.

Output: vibrating


Input:
Sentence1: Ribosomes are structures in the cytoplasm where proteins are made.
Sentence2: prokaryotes can make proteins.

Output: made


Input:
Sentence1: Ribosomes are structures in the cytoplasm where proteins are made.
Sentence2: prokaryotes can make proteins.

Output: proteins


Input:
Sentence1: skin is used for breathing air by frogs.
Sentence2: Actually the toad is a type of frog.

Output: frogs


Input:
Sentence1: Earth is a world of water.
Sentence2: Water is essential for all life in the world.

Output: world


Input:
Sentence1: Muscle contraction occurs when muscle fibers get shorter.
Sentence2: Contraction of the muscle straightens the leg.

Output: Muscle


Input:
Sentence1: Muscle contraction occurs when muscle fibers get shorter.
Sentence2: Contraction of the muscle straightens the leg.

Output: contraction


Input:
Sentence1: Bile reduces the acidity of food entering from the highly acidic stomach.
Sentence2: Bile acts as a base on the food entering the stomach.

Output: Bile


Input:
Sentence1: Bile reduces the acidity of food entering from the highly acidic stomach.
Sentence2: Bile acts as a base on the food entering the stomach.

Output: entering


Input:
Sentence1: Bile reduces the acidity of food entering from the highly acidic stomach.
Sentence2: Bile acts as a base on the food entering the stomach.

Output: stomach


Input:
Sentence1: Extremely high winds can cause extensive damage.
Sentence2: Uneven heating of the Earth's surface can cause extensive damage.

Output: can


Input:
Sentence1: Extremely high winds can cause extensive damage.
Sentence2: Uneven heating of the Earth's surface can cause extensive damage.

Output: cause


Input:
Sentence1: Extremely high winds can cause extensive damage.
Sentence2: Uneven heating of the Earth's surface can cause extensive damage.

Output: damage


Input:
Sentence1: Extremely high winds can cause extensive damage.
Sentence2: Uneven heating of the Earth's surface can cause extensive damage.

Output: extensive


Input:
Sentence1: if soil is permeable then water easily flows through that soil.
Sentence2: if soil is permeable then h2o easily flows through the soil.

Output: flows


Input:
Sentence1: if soil is permeable then water easily flows through that soil.
Sentence2: if soil is permeable then h2o easily flows through the soil.

Output: permeable


Input:
Sentence1: if soil is permeable then water easily flows through that soil.
Sentence2: if soil is permeable then h2o easily flows through the soil.

Output: soil


Input:
Sentence1: if soil is permeable then water easily flows through that soil.
Sentence2: if soil is permeable then h2o easily flows through the soil.

Output: through


Input:
Sentence1: Mutations are sources of variations in offspring.
Sentence2: Mutations can occur during the reproduction process.

Output: Mutations


Input:
Sentence1: Saliva contributes more than 70 percent of the liquid in the rumen.
Sentence2: Food is easier to chew because it is moistened by liquid.

Output: liquid


Input:
Sentence1: Fish have a circulatory system with a two-chambered heart.
Sentence2: Trout is an extremely versatile fish.

Output: Fish


Input:
Sentence1: Classical pointing tools is the compass.
Sentence2: Natural magnetism is used for pointing north by a classical pointing tool.

Output: Classical


Input:
Sentence1: Classical pointing tools is the compass.
Sentence2: Natural magnetism is used for pointing north by a classical pointing tool.

Output: pointing


Input:
Sentence1: Classical pointing tools is the compass.
Sentence2: Natural magnetism is used for pointing north by a classical pointing tool.

Output: tools


Input:
Sentence1: DNA contains genetic instructions for proteins, and RNA helps assemble the proteins.
Sentence2: dna is required for life.

Output: DNA


Input:
Sentence1: smoking tobacco decreases stamina.
Sentence2: Smoking tobacco may cause low-grade anemia resulting in low stamina.

Output: smoking


Input:
Sentence1: smoking tobacco decreases stamina.
Sentence2: Smoking tobacco may cause low-grade anemia resulting in low stamina.

Output: tobacco


Input:
Sentence1: condensation causes clouds to form.
Sentence2: With increasing cloud blocking the sun, temperatures drop considerably.

Output: clouds


Input:
Sentence1: temperature changing can cause phase changes.
Sentence2: When water goes through the cold induced phase change to produce ice, the ice expands.

Output: phase


Input:
Sentence1: a ruler is used for measuring the length of an object.
Sentence2: a shadow can be measured by a ruler.

Output: ruler


Input:
Sentence1: Annelids are worms such as the familiar earthworm.
Sentence2: Moles eat some Annelids.

Output: Annelids


Input:
Sentence1: lightning can cause a forest fire.
Sentence2: Lightning is very common during storms.

Output: lightning


Input:
Sentence1: Some parasites kill their host, but most do not.
Sentence2: most tapeworms do not kill their hosts.

Output: do


Input:
Sentence1: Some parasites kill their host, but most do not.
Sentence2: most tapeworms do not kill their hosts.

Output: host


Input:
Sentence1: Some parasites kill their host, but most do not.
Sentence2: most tapeworms do not kill their hosts.

Output: kill


Input:
Sentence1: Some parasites kill their host, but most do not.
Sentence2: most tapeworms do not kill their hosts.

Output: most


Input:
Sentence1: Some parasites kill their host, but most do not.
Sentence2: most tapeworms do not kill their hosts.

Output: not


Input:
Sentence1: Some parasites kill their host, but most do not.
Sentence2: most tapeworms do not kill their hosts.

Output: their


Input:
Sentence1: Another gene, named BRCA2, has also been identified.
Sentence2: Chromosomes contain BRCA2.

Output: BRCA2


Input:
Sentence1: Kidney failure may be treated with dialysis.
Sentence2: kidney failure may be treated with a procedure to filter the blood.

Output: Kidney


Input:
Sentence1: Kidney failure may be treated with dialysis.
Sentence2: kidney failure may be treated with a procedure to filter the blood.

Output: failure


Input:
Sentence1: Kidney failure may be treated with dialysis.
Sentence2: kidney failure may be treated with a procedure to filter the blood.

Output: treated


Input:
Sentence1: Lions are members of the 'Panthera leo' species.
Sentence2: Competition may cause lions to fight other lions.

Output: Lions


Input:
Sentence1: Endospores are commonly found in soil and water.
Sentence2: Dirt is really misplaced soil.

Output: soil


Input:
Sentence1: Many plants depend on birds for pollination and seed dispersal.
Sentence2: plants are pollinated by birds.

Output: birds


Input:
Sentence1: Flooding is a major concern, volcanoes threaten to erupt, and earthquakes can potentially cause destruction through ground shaking or liquefaction.
Sentence2: The ground shaking can cause destruction.

Output: cause


Input:
Sentence1: Flooding is a major concern, volcanoes threaten to erupt, and earthquakes can potentially cause destruction through ground shaking or liquefaction.
Sentence2: The ground shaking can cause destruction.

Output: destruction


Input:
Sentence1: Urine is the liquid waste product of the body that is excreted by the urinary system.
Sentence2: Along with water, minerals are lost in the urine.

Output: Urine


Input:
Sentence1: Much of the volcanic soil is permeable.
Sentence2: water flows easily through volcanic soil.

Output: soil


Input:
Sentence1: Much of the volcanic soil is permeable.
Sentence2: water flows easily through volcanic soil.

Output: volcanic


Input:
Sentence1: Mass Amount of matter an object contains.
Sentence2: phase changes do not change amount of matter.

Output: Amount


Input:
Sentence1: Mass Amount of matter an object contains.
Sentence2: phase changes do not change amount of matter.

Output: matter


Input:
Sentence1: Arthropods are the largest phylum of invertebrates.
Sentence2: insects are arthropods.

Output: Arthropods


Input:
Sentence1: Active immunity results when an immune response to a pathogen produces memory cells.
Sentence2: vaccination results when an immune response to a pathogen produces memory cells.

Output: cells


Input:
Sentence1: Active immunity results when an immune response to a pathogen produces memory cells.
Sentence2: vaccination results when an immune response to a pathogen produces memory cells.

Output: immune


Input:
Sentence1: Active immunity results when an immune response to a pathogen produces memory cells.
Sentence2: vaccination results when an immune response to a pathogen produces memory cells.

Output: memory


Input:
Sentence1: Active immunity results when an immune response to a pathogen produces memory cells.
Sentence2: vaccination results when an immune response to a pathogen produces memory cells.

Output: pathogen


Input:
Sentence1: Active immunity results when an immune response to a pathogen produces memory cells.
Sentence2: vaccination results when an immune response to a pathogen produces memory cells.

Output: produces


Input:
Sentence1: Active immunity results when an immune response to a pathogen produces memory cells.
Sentence2: vaccination results when an immune response to a pathogen produces memory cells.

Output: response


Input:
Sentence1: Active immunity results when an immune response to a pathogen produces memory cells.
Sentence2: vaccination results when an immune response to a pathogen produces memory cells.

Output: results


Input:
Sentence1: Active immunity results when an immune response to a pathogen produces memory cells.
Sentence2: vaccination results when an immune response to a pathogen produces memory cells.

Output: when


Input:
Sentence1: damming a river can cause a lake to form.
Sentence2: You can also water ski on Lake Mohave north of Davis Dam.

Output: lake


Input:
Sentence1: Flagellates are the smallest of the protozoa and use a few whip like flagella to move.
Sentence2: Flagellates can be classified on the basis of how they use a few whip to move.

Output: Flagellates


Input:
Sentence1: Flagellates are the smallest of the protozoa and use a few whip like flagella to move.
Sentence2: Flagellates can be classified on the basis of how they use a few whip to move.

Output: few


Input:
Sentence1: Flagellates are the smallest of the protozoa and use a few whip like flagella to move.
Sentence2: Flagellates can be classified on the basis of how they use a few whip to move.

Output: move


Input:
Sentence1: Flagellates are the smallest of the protozoa and use a few whip like flagella to move.
Sentence2: Flagellates can be classified on the basis of how they use a few whip to move.

Output: use


Input:
Sentence1: Flagellates are the smallest of the protozoa and use a few whip like flagella to move.
Sentence2: Flagellates can be classified on the basis of how they use a few whip to move.

Output: whip


Input:
Sentence1: Balance is the ability to sense and maintain body position.
Sentence2: the ability to sense and maintain body position prevents people falling.

Output: ability


Input:
Sentence1: Balance is the ability to sense and maintain body position.
Sentence2: the ability to sense and maintain body position prevents people falling.

Output: body


Input:
Sentence1: Balance is the ability to sense and maintain body position.
Sentence2: the ability to sense and maintain body position prevents people falling.

Output: maintain


Input:
Sentence1: Balance is the ability to sense and maintain body position.
Sentence2: the ability to sense and maintain body position prevents people falling.

Output: position


Input:
Sentence1: Nephrons are the structural and functional units of the kidneys.
Sentence2: fluid in the kidneys collect into ducts.

Output: kidneys


Input:
Sentence1: cycles of freezing and thawing water cause ice wedging.
Sentence2: Water is made up of H2O molecules.

Output: water


Input:
Sentence1: a switch is used to start the flow of current in an electrical circuit.
Sentence2: Electric power is ready to use at the flip of a switch.

Output: switch


Input:
Sentence1: soil is formed by weathering.
Sentence2: Soil is formed by the breaking down of rocks.

Output: formed


Input:
Sentence1: soil is formed by weathering.
Sentence2: Soil is formed by the breaking down of rocks.

Output: soil


Input:
Sentence1: Background Hot water vents form inside cracks in the ocean floor.
Sentence2: Organisms cluster around hot water inside cracks in the ocean floor.

Output: Hot


Input:
Sentence1: Background Hot water vents form inside cracks in the ocean floor.
Sentence2: Organisms cluster around hot water inside cracks in the ocean floor.

Output: cracks


Input:
Sentence1: Background Hot water vents form inside cracks in the ocean floor.
Sentence2: Organisms cluster around hot water inside cracks in the ocean floor.

Output: inside


Input:
Sentence1: Background Hot water vents form inside cracks in the ocean floor.
Sentence2: Organisms cluster around hot water inside cracks in the ocean floor.

Output: water


Input:
Sentence1: Vegetation includes shrubs and cactus plants.
Sentence2: Cactus use cellulose for their cell walls.

Output: cactus


Input:
Sentence1: pathogens can cause disease.
Sentence2: Bacteria can cause disease.

Output: can


Input:
Sentence1: pathogens can cause disease.
Sentence2: Bacteria can cause disease.

Output: cause


Input:
Sentence1: pathogens can cause disease.
Sentence2: Bacteria can cause disease.

Output: disease


Input:
Sentence1: Birth may be followed by a period of parental care of the offspring.
Sentence2: Each birth is as unique as the child that is born.

Output: Birth


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Solar energy is clean energy .

Output: Energy


Input:
Sentence1: a light bulb is used for seeing in the dark.
Sentence2: Electricity can be used for seeing in the dark.

Output: dark


Input:
Sentence1: a light bulb is used for seeing in the dark.
Sentence2: Electricity can be used for seeing in the dark.

Output: seeing


Input:
Sentence1: if an object is kicked then force is exerted on that object.
Sentence2: When a force is exerted on an object, energy is transferred to the object.

Output: exerted


Input:
Sentence1: if an object is kicked then force is exerted on that object.
Sentence2: When a force is exerted on an object, energy is transferred to the object.

Output: force


Input:
Sentence1: smoking tobacco decreases stamina.
Sentence2: Good cigars or quality cigars contain only tobacco.

Output: tobacco


Input:
Sentence1: Protozoa can be classified on the basis of how they move.
Sentence2: Cilia wave in a coordinated way to move the protozoa in one direction.

Output: Protozoa


Input:
Sentence1: lakes are formed by precipitation and runoff.
Sentence2: The lake was formed by glacial activity.

Output: runoff


Input:
Sentence1: Small engines, such as in lawn mowers, pollute at a high rate.
Sentence2: converting gasoline into motion cause pollution.

Output: pollute


Input:
Sentence1: heavy rains cause flooding.
Sentence2: Floods are deadly, floods are devastating.

Output: flooding


Input:
Sentence1: Basically, fiber is cellulose .
Sentence2: Cells walls are fiber.

Output: fiber


Input:
Sentence1: if an organism becomes too hot then that organism may die.
Sentence2: Death occurs when the organs are no longer able to function.

Output: organism


Input:
Sentence1: Skin color is another polygenic trait.
Sentence2: Pigment cells are what give color or tint to the skin.

Output: Skin


Input:
Sentence1: Skin color is another polygenic trait.
Sentence2: Pigment cells are what give color or tint to the skin.

Output: color


Input:
Sentence1: Vesicle transport requires energy, so it is also a form of active transport.
Sentence2: Then the membranes of the vesicle and the cell fuse and the contents of the vesicle are released.

Output: Vesicle


Input:
Sentence1: Chemical digestion occurs mainly in the small intestine.
Sentence2: Extracellular digestion begins in the pharynx, with further digestion in the stomodaeum.

Output: digestion


Input:
Sentence1: Communication Communication is exchange of Information.
Sentence2: a radio can be used to exchange information.

Output: Information


Input:
Sentence1: Instead, the body is covered with a protective shell of bony armor.
Sentence2: Most mollusks have protective of bony armor.

Output: armor


Input:
Sentence1: Instead, the body is covered with a protective shell of bony armor.
Sentence2: Most mollusks have protective of bony armor.

Output: bony


Input:
Sentence1: Instead, the body is covered with a protective shell of bony armor.
Sentence2: Most mollusks have protective of bony armor.

Output: protective


Input:
Sentence1: waxy leaves are used for storing water by some plants.
Sentence2: Bromeliads store water in their waxy leaves.

Output: storing


Input:
Sentence1: waxy leaves are used for storing water by some plants.
Sentence2: Bromeliads store water in their waxy leaves.

Output: water


Input:
Sentence1: intense heat has a negative impact on an organism.
Sentence2: organisms can be killed by direct sunlight.

Output: organism


Input:
Sentence1: Ethanol, a form of alcohol, is already the most common biofuel.
Sentence2: a form of alcohol is used to produce electricity by burning.

Output: alcohol


Input:
Sentence1: Ethanol, a form of alcohol, is already the most common biofuel.
Sentence2: a form of alcohol is used to produce electricity by burning.

Output: form


Input:
Sentence1: Heterotrophs get food by eating other living things.
Sentence2: fish eat other living things.

Output: living


Input:
Sentence1: Heterotrophs get food by eating other living things.
Sentence2: fish eat other living things.

Output: things


Input:
Sentence1: Caecilians can be found in moist soil near rivers and streams in tropical regions.
Sentence2: Earthworm-like amphibians live in soil near rivers in tropical regions.

Output: regions


Input:
Sentence1: Caecilians can be found in moist soil near rivers and streams in tropical regions.
Sentence2: Earthworm-like amphibians live in soil near rivers in tropical regions.

Output: tropical


Input:
Sentence1: Insulin helps cells take up glucose from the blood.
Sentence2: The pancreas lower glucose levels in the blood?.

Output: blood


Input:
Sentence1: Insulin helps cells take up glucose from the blood.
Sentence2: The pancreas lower glucose levels in the blood?.

Output: glucose


Input:
Sentence1: Refraction is the bending of light.
Sentence2: A rainbow is formed by the bending of light.

Output: bending


Input:
Sentence1: Refraction is the bending of light.
Sentence2: A rainbow is formed by the bending of light.

Output: light


Input:
Sentence1: Refraction is the bending of light.
Sentence2: A rainbow is formed by the bending of light.

Output: of


Input:
Sentence1: Refraction is the bending of light.
Sentence2: A rainbow is formed by the bending of light.

Output: the


Input:
Sentence1: creating wood-free paper does not require cutting down trees.
Sentence2: creating printed media requires cutting down trees.

Output: creating


Input:
Sentence1: creating wood-free paper does not require cutting down trees.
Sentence2: creating printed media requires cutting down trees.

Output: cutting


Input:
Sentence1: creating wood-free paper does not require cutting down trees.
Sentence2: creating printed media requires cutting down trees.

Output: down


Input:
Sentence1: creating wood-free paper does not require cutting down trees.
Sentence2: creating printed media requires cutting down trees.

Output: require


Input:
Sentence1: creating wood-free paper does not require cutting down trees.
Sentence2: creating printed media requires cutting down trees.

Output: trees


Input:
Sentence1: bad weather decreases visibility while driving.
Sentence2: Collisions are more likely when visibility is poor.

Output: decreases


Input:
Sentence1: bad weather decreases visibility while driving.
Sentence2: Collisions are more likely when visibility is poor.

Output: visibility


Input:
Sentence1: astronauts require preserved food for extended flights.
Sentence2: Most of the Shuttle foods are preserved by dehydration, which saves weight and storage space.

Output: preserved


Input:
Sentence1: Roundworms reproduce sexually.
Sentence2: Sexual reproduction is the combination of egg and sperm to form larvae.

Output: sexually


Input:
Sentence1: Mammals took advantage of the extinction of the dinosaurs.
Sentence2: mammals existed in the mesozoic era.

Output: Mammals


Input:
Sentence1: Optical tools Apply and distinguish between optical comparators, optical flats, and microscopes.
Sentence2: comparators, flats, and microscopes could be used for observing materials up close.

Output: comparators


Input:
Sentence1: Optical tools Apply and distinguish between optical comparators, optical flats, and microscopes.
Sentence2: comparators, flats, and microscopes could be used for observing materials up close.

Output: flats


Input:
Sentence1: Optical tools Apply and distinguish between optical comparators, optical flats, and microscopes.
Sentence2: comparators, flats, and microscopes could be used for observing materials up close.

Output: microscopes


Input:
Sentence1: Most reptiles have good eyesight and a keen sense of smell.
Sentence2: some lizards have good eyesight and a keen sense of smell.

Output: eyesight


Input:
Sentence1: Most reptiles have good eyesight and a keen sense of smell.
Sentence2: some lizards have good eyesight and a keen sense of smell.

Output: good


Input:
Sentence1: Most reptiles have good eyesight and a keen sense of smell.
Sentence2: some lizards have good eyesight and a keen sense of smell.

Output: keen


Input:
Sentence1: Most reptiles have good eyesight and a keen sense of smell.
Sentence2: some lizards have good eyesight and a keen sense of smell.

Output: sense


Input:
Sentence1: Most reptiles have good eyesight and a keen sense of smell.
Sentence2: some lizards have good eyesight and a keen sense of smell.

Output: smell


Input:
Sentence1: biofuel is used to produce electricity by burning.
Sentence2: hemp is used to produce electricity by burning.

Output: burning


Input:
Sentence1: biofuel is used to produce electricity by burning.
Sentence2: hemp is used to produce electricity by burning.

Output: electricity


Input:
Sentence1: biofuel is used to produce electricity by burning.
Sentence2: hemp is used to produce electricity by burning.

Output: produce


Input:
Sentence1: biofuel is used to produce electricity by burning.
Sentence2: hemp is used to produce electricity by burning.

Output: used


Input:
Sentence1: Fireworks are illegal, including firecrackers.
Sentence2: Fireworks convert chemical energy into sound.

Output: Fireworks


Input:
Sentence1: Most mammals have hair, or fur, covering their body.
Sentence2: Most mammals have a body covering for keeping warm.

Output: body


Input:
Sentence1: Most mammals have hair, or fur, covering their body.
Sentence2: Most mammals have a body covering for keeping warm.

Output: covering


Input:
Sentence1: Most mammals have hair, or fur, covering their body.
Sentence2: Most mammals have a body covering for keeping warm.

Output: mammals


Input:
Sentence1: For big mountain background, check out the Himalayas .
Sentence2: big mountains were formed by rock folding.

Output: big


Input:
Sentence1: For big mountain background, check out the Himalayas .
Sentence2: big mountains were formed by rock folding.

Output: mountain


Input:
Sentence1: faulting of rock in Earth 's crust causes earthquakes.
Sentence2: Faults, cracks in the Earth's crust, produce earthquakes when they move or slip.

Output: Earth


Input:
Sentence1: faulting of rock in Earth 's crust causes earthquakes.
Sentence2: Faults, cracks in the Earth's crust, produce earthquakes when they move or slip.

Output: crust


Input:
Sentence1: faulting of rock in Earth 's crust causes earthquakes.
Sentence2: Thrust faults are a result of compressional forces in the Earth's crust.

Output: 's


Input:
Sentence1: faulting of rock in Earth 's crust causes earthquakes.
Sentence2: Thrust faults are a result of compressional forces in the Earth's crust.

Output: Earth


Input:
Sentence1: faulting of rock in Earth 's crust causes earthquakes.
Sentence2: Thrust faults are a result of compressional forces in the Earth's crust.

Output: crust


Input:
Sentence1: faulting of rock in Earth 's crust causes earthquakes.
Sentence2: Thrust faults are a result of compressional forces in the Earth's crust.

Output: faulting


Input:
Sentence1: planting trees has a positive impact on an ecosystem.
Sentence2: Planting trees has a positive impact on woodlands.

Output: impact


Input:
Sentence1: planting trees has a positive impact on an ecosystem.
Sentence2: Planting trees has a positive impact on woodlands.

Output: planting


Input:
Sentence1: planting trees has a positive impact on an ecosystem.
Sentence2: Planting trees has a positive impact on woodlands.

Output: positive


Input:
Sentence1: planting trees has a positive impact on an ecosystem.
Sentence2: Planting trees has a positive impact on woodlands.

Output: trees


Input:
Sentence1: When water freezes it expands and will usually cause damage.
Sentence2: Water freezing causes damage.

Output: cause


Input:
Sentence1: When water freezes it expands and will usually cause damage.
Sentence2: Water freezing causes damage.

Output: damage


Input:
Sentence1: Hay fever is caused by an allergy to pollens or moulds.
Sentence2: Hay fever is caused by plant reproduction.

Output: Hay


Input:
Sentence1: Hay fever is caused by an allergy to pollens or moulds.
Sentence2: Hay fever is caused by plant reproduction.

Output: by


Input:
Sentence1: Hay fever is caused by an allergy to pollens or moulds.
Sentence2: Hay fever is caused by plant reproduction.

Output: caused


Input:
Sentence1: Hay fever is caused by an allergy to pollens or moulds.
Sentence2: Hay fever is caused by plant reproduction.

Output: fever


Input:
Sentence1: if all members of a species cannot produce offspring then that species will likely become extinct.
Sentence2: Extinct animals include the dodo bird and the saber-toothed tiger.

Output: extinct


Input:
Sentence1: Blood Pressure Blood Pressure Blood pressure is the force of the blood on the artery walls.
Sentence2: The force of blood is highest in arteries and lowest in veins.

Output: blood


Input:
Sentence1: Blood Pressure Blood Pressure Blood pressure is the force of the blood on the artery walls.
Sentence2: The force of blood is highest in arteries and lowest in veins.

Output: force


Input:
Sentence1: insulated material can be used for keeping warm.
Sentence2: Coats and blankets are insulating materials that humans wear.

Output: insulated


Input:
Sentence1: insulated material can be used for keeping warm.
Sentence2: Coats and blankets are insulating materials that humans wear.

Output: material


Input:
Sentence1: soil erosion means soil loss through wind.
Sentence2: Cover Crops Cover Crops usually are grown to prevent soil loss from wind and water erosion.

Output: loss


Input:
Sentence1: soil erosion means soil loss through wind.
Sentence2: Cover Crops Cover Crops usually are grown to prevent soil loss from wind and water erosion.

Output: wind


Input:
Sentence1: dew is formed when water vapor condenses over night.
Sentence2: If there is a greater dew point there is more water vapor.

Output: vapor


Input:
Sentence1: dew is formed when water vapor condenses over night.
Sentence2: If there is a greater dew point there is more water vapor.

Output: water


Input:
Sentence1: matter vibrating can cause sound.
Sentence2: Guitar strings vibrate.

Output: vibrating


Input:
Sentence1: Bioterrorism is another potential threat in the environment.
Sentence2: bioterrorism is silent.

Output: Bioterrorism


Input:
Sentence1: fog is formed by water vapor condensing in the air.
Sentence2: Fog happens when the water vapor condenses into particles as air temperatures cool.

Output: condensing


Input:
Sentence1: condensation causes clouds to form.
Sentence2: Clouds are made of water.

Output: clouds


Input:
Sentence1: when water freezes , that water expands.
Sentence2: Upon further cooling to 32 degrees Fahrenheit, water expands as it turns to ice.

Output: expands


Input:
Sentence1: melting is when solids are heated above their melting point.
Sentence2: Ice is a solid, it's cold and it's hard.

Output: solids


Input:
Sentence1: Rivers erode the rocks they flow over.
Sentence2: Water erodes rocks as they flow over, creating a valley.

Output: erode


Input:
Sentence1: Rivers erode the rocks they flow over.
Sentence2: Water erodes rocks as they flow over, creating a valley.

Output: rocks


Input:
Sentence1: Mars has day and night for the same reasons that Earth has day and night.
Sentence2: Mars is a rotating planet.

Output: Mars


Input:
Sentence1: burning wood is used to produce heat.
Sentence2: wood has to be cut to be used in a stove.

Output: wood


Input:
Sentence1: a spider web is used to capture food by spiders.
Sentence2: Larger numbers of spiders and spider webs means there are many insects available for food.

Output: food


Input:
Sentence1: All life relies on a relatively narrow range of pH, or acidity.
Sentence2: humans rely on a relatively narrow range of acidity.

Output: acidity


Input:
Sentence1: All life relies on a relatively narrow range of pH, or acidity.
Sentence2: humans rely on a relatively narrow range of acidity.

Output: narrow


Input:
Sentence1: All life relies on a relatively narrow range of pH, or acidity.
Sentence2: humans rely on a relatively narrow range of acidity.

Output: range


Input:
Sentence1: All life relies on a relatively narrow range of pH, or acidity.
Sentence2: humans rely on a relatively narrow range of acidity.

Output: relatively


Input:
Sentence1: All life relies on a relatively narrow range of pH, or acidity.
Sentence2: humans rely on a relatively narrow range of acidity.

Output: relies


Input:
Sentence1: Scientists who find and study fossils are called paleontologists.
Sentence2: Scientists who find and study dinosaurs are called paleontologists.

Output: Scientists


Input:
Sentence1: Scientists who find and study fossils are called paleontologists.
Sentence2: Scientists who find and study dinosaurs are called paleontologists.

Output: find