Input:
Sentence1: Most species go through larval stages after hatching.
Sentence2: Glowworms are the larvae of some species.

Output: species


Input:
Sentence1: Energy is the fuel for chemical reactions which run the various systems of the body.
Sentence2: running requires fuel for chemical reactions which run the various systems of the body.

Output: body


Input:
Sentence1: Energy is the fuel for chemical reactions which run the various systems of the body.
Sentence2: running requires fuel for chemical reactions which run the various systems of the body.

Output: chemical


Input:
Sentence1: Energy is the fuel for chemical reactions which run the various systems of the body.
Sentence2: running requires fuel for chemical reactions which run the various systems of the body.

Output: fuel


Input:
Sentence1: Energy is the fuel for chemical reactions which run the various systems of the body.
Sentence2: running requires fuel for chemical reactions which run the various systems of the body.

Output: reactions


Input:
Sentence1: Energy is the fuel for chemical reactions which run the various systems of the body.
Sentence2: running requires fuel for chemical reactions which run the various systems of the body.

Output: run


Input:
Sentence1: Energy is the fuel for chemical reactions which run the various systems of the body.
Sentence2: running requires fuel for chemical reactions which run the various systems of the body.

Output: systems


Input:
Sentence1: Energy is the fuel for chemical reactions which run the various systems of the body.
Sentence2: running requires fuel for chemical reactions which run the various systems of the body.

Output: various


Input:
Sentence1: Energy is the fuel for chemical reactions which run the various systems of the body.
Sentence2: running requires fuel for chemical reactions which run the various systems of the body.

Output: which


Input:
Sentence1: a nest is used for protecting young by birds.
Sentence2: Nests are used to protect eggs from predators and extreme temperatures.

Output: nest


Input:
Sentence1: a nest is used for protecting young by birds.
Sentence2: Nests are used to protect eggs from predators and extreme temperatures.

Output: used


Input:
Sentence1: cables are used for support by suspension bridges.
Sentence2: suspension bridges have support.

Output: suspension


Input:
Sentence1: Sandstones are another type of sedimentary rocks used in buildings.
Sentence2: sandstones are formed by deposition.

Output: Sandstones


Input:
Sentence1: Iron deficiency Anemia is associated with low levels of the mineral iron in the body.
Sentence2: iron is a chemical element that is essential for body processes.

Output: Iron


Input:
Sentence1: when a plant grows , the size of the leaves of that plant may increase.
Sentence2: Ferns are vascular plants.

Output: plant


Input:
Sentence1: When water vapor cools, it condenses to form clouds.
Sentence2: Clouds are formed when vapor cools.

Output: clouds


Input:
Sentence1: When water vapor cools, it condenses to form clouds.
Sentence2: Clouds are formed when vapor cools.

Output: form


Input:
Sentence1: plant reproduction requires pollination.
Sentence2: Bees are useful for plant reproduction.

Output: plant


Input:
Sentence1: plant reproduction requires pollination.
Sentence2: Bees are useful for plant reproduction.

Output: reproduction


Input:
Sentence1: Sweat wets the skin, and when it evaporates, it cools the body.
Sentence2: humidity decreases sweat.

Output: Sweat


Input:
Sentence1: microbial fuel cells convert chemical energy into electrical energy.
Sentence2: Bacteria and fungi are the other two classes of microbial pathogens.

Output: microbial


Input:
Sentence1: Most pituitary hormones control other endocrine glands.
Sentence2: Endocrine glands include the pituitary, thyroid, parathyroid, adrenal, pineal and thymus glands.

Output: endocrine


Input:
Sentence1: Most pituitary hormones control other endocrine glands.
Sentence2: Endocrine glands include the pituitary, thyroid, parathyroid, adrenal, pineal and thymus glands.

Output: glands


Input:
Sentence1: After a six month gestation, a female gives birth to a single offspring, sometimes to twins.
Sentence2: Reproduction is the process by which organisms gestate offspring.

Output: gestation


Input:
Sentence1: After a six month gestation, a female gives birth to a single offspring, sometimes to twins.
Sentence2: Reproduction is the process by which organisms gestate offspring.

Output: offspring


Input:
Sentence1: threatening behavior causes a fight-or-flight response in animals.
Sentence2: adrenaline is a response to threats.

Output: threatening


Input:
Sentence1: Lengths A length is a measure of distance.
Sentence2: A tape measure is used to measure distance.

Output: distance


Input:
Sentence1: a speedometer is used for giving a driver feedback on the speed of their vehicle.
Sentence2: a speedometer measures the rate of travel.

Output: speedometer


Input:
Sentence1: Hearing requires functioning ears.
Sentence2: ears are used for sensing sound by animals.

Output: ears


Input:
Sentence1: Muscles can only contract.
Sentence2: Contraction is a type of movement.

Output: contract


Input:
Sentence1: Copper is a great thermal conductor.
Sentence2: if copper is exposed to a source of heat then it may become hot.

Output: Copper


Input:
Sentence1: Chemical digestion occurs mainly in the small intestine.
Sentence2: Enzymes involved in digestion occur mainly in the small intestine.

Output: intestine


Input:
Sentence1: Chemical digestion occurs mainly in the small intestine.
Sentence2: Enzymes involved in digestion occur mainly in the small intestine.

Output: mainly


Input:
Sentence1: Chemical digestion occurs mainly in the small intestine.
Sentence2: Enzymes involved in digestion occur mainly in the small intestine.

Output: occurs


Input:
Sentence1: Chemical digestion occurs mainly in the small intestine.
Sentence2: Enzymes involved in digestion occur mainly in the small intestine.

Output: small


Input:
Sentence1: Earth 's tilt on its rotating axis causes seasons to change.
Sentence2: Whatever the season wet weather and cold weather clothing is essential.

Output: seasons


Input:
Sentence1: erosion causes a river to become deeper and wider.
Sentence2: Erosion is loss of soil caused by rain and wind.

Output: erosion


Input:
Sentence1: disease-causing microbes have a negative impact on the body.
Sentence2: Pathogens are microbes that cause disease.

Output: disease-causing


Input:
Sentence1: disease-causing microbes have a negative impact on the body.
Sentence2: Pathogens are microbes that cause disease.

Output: microbes


Input:
Sentence1: Fire has intense heat.
Sentence2: Fire can be used to identify that liquid's boiling point.

Output: Fire


Input:
Sentence1: oil is formed by layers of sediment pushing down on decomposing algae.
Sentence2: Burial of sediments also causes the sediments to increase in temperature.

Output: sediment


Input:
Sentence1: Meiosis is the type of cell division that produces gametes.
Sentence2: Examples of gametes are ova and spermatozoa.

Output: gametes


Input:
Sentence1: Flood waters rise rapidly.
Sentence2: heavy rains cause waters to rise rapidly.

Output: rapidly


Input:
Sentence1: Flood waters rise rapidly.
Sentence2: heavy rains cause waters to rise rapidly.

Output: rise


Input:
Sentence1: Flood waters rise rapidly.
Sentence2: heavy rains cause waters to rise rapidly.

Output: waters


Input:
Sentence1: Ribosomes are assembled inside the nucleus.
Sentence2: proteins are made inside the nucleus.

Output: inside


Input:
Sentence1: Ribosomes are assembled inside the nucleus.
Sentence2: proteins are made inside the nucleus.

Output: nucleus


Input:
Sentence1: Sunlight can be converted to electricity.
Sentence2: Sunlight can be  used as an energy source by devices.

Output: Sunlight


Input:
Sentence1: Sunlight can be converted to electricity.
Sentence2: Sunlight can be  used as an energy source by devices.

Output: be


Input:
Sentence1: Sunlight can be converted to electricity.
Sentence2: Sunlight can be  used as an energy source by devices.

Output: can


Input:
Sentence1: sexual reproduction increases genetic diversity.
Sentence2: The conclusion is that genetic diversity is desirable for the health and long-term survival of a population.

Output: diversity


Input:
Sentence1: sexual reproduction increases genetic diversity.
Sentence2: The conclusion is that genetic diversity is desirable for the health and long-term survival of a population.

Output: genetic


Input:
Sentence1: Butterflies bask to heat up their wing muscles for flight.
Sentence2: butterflies' instruments of flight are part of the exoskeleton and attached to the thorax.

Output: Butterflies


Input:
Sentence1: Butterflies bask to heat up their wing muscles for flight.
Sentence2: butterflies' instruments of flight are part of the exoskeleton and attached to the thorax.

Output: flight


Input:
Sentence1: Reptile parents provide little if any care to their young.
Sentence2: Geckos are, in fact, reptiles.

Output: Reptile


Input:
Sentence1: if an object in a fluid is more dense than that fluid then that object will sink in that fluid because of gravity.
Sentence2: Water is usually the best fluid.

Output: fluid


Input:
Sentence1: adding salt to a liquid decreases the melting point of that liquid.
Sentence2: The melting point depends on the nature of the liquid.

Output: melting


Input:
Sentence1: adding salt to a liquid decreases the melting point of that liquid.
Sentence2: The melting point depends on the nature of the liquid.

Output: point


Input:
Sentence1: Organisms cluster around hydrothermal vents in the ocean floor.
Sentence2: organisms on the ocean floor are unique.

Output: Organisms


Input:
Sentence1: Oxygen enters the respiratory system through the mouth and the nose.
Sentence2: Breathing masks are used to keep harmful particles from entering the mouth and the nose.

Output: mouth


Input:
Sentence1: Oxygen enters the respiratory system through the mouth and the nose.
Sentence2: Breathing masks are used to keep harmful particles from entering the mouth and the nose.

Output: nose


Input:
Sentence1: Evolution is the study of living things with time.
Sentence2: evolution studies characteristics over time.

Output: study


Input:
Sentence1: lightning can cause a forest fire.
Sentence2: Lightning bolts are cascades of electrons.

Output: lightning


Input:
Sentence1: Ozone depletion results in higher levels of UV radiation reaching Earth.
Sentence2: higher levels of UV radiation reach Earth through atmospheric holes.

Output: Earth


Input:
Sentence1: Ozone depletion results in higher levels of UV radiation reaching Earth.
Sentence2: higher levels of UV radiation reach Earth through atmospheric holes.

Output: UV


Input:
Sentence1: Ozone depletion results in higher levels of UV radiation reaching Earth.
Sentence2: higher levels of UV radiation reach Earth through atmospheric holes.

Output: higher


Input:
Sentence1: Ozone depletion results in higher levels of UV radiation reaching Earth.
Sentence2: higher levels of UV radiation reach Earth through atmospheric holes.

Output: levels


Input:
Sentence1: Ozone depletion results in higher levels of UV radiation reaching Earth.
Sentence2: higher levels of UV radiation reach Earth through atmospheric holes.

Output: radiation


Input:
Sentence1: Ozone depletion results in higher levels of UV radiation reaching Earth.
Sentence2: higher levels of UV radiation reach Earth through atmospheric holes.

Output: reaching


Input:
Sentence1: a mirror is used for reflecting light.
Sentence2: waves of light bounce off of mirrors.

Output: light


Input:
Sentence1: Cells produce mRNA by transcription of their DNA genomes.
Sentence2: Cells produce mRNA in the nucleus.

Output: Cells


Input:
Sentence1: Cells produce mRNA by transcription of their DNA genomes.
Sentence2: Cells produce mRNA in the nucleus.

Output: mRNA


Input:
Sentence1: Cells produce mRNA by transcription of their DNA genomes.
Sentence2: Cells produce mRNA in the nucleus.

Output: produce


Input:
Sentence1: creating paper requires cutting down trees.
Sentence2: Trees only grow to be cut down.

Output: cutting


Input:
Sentence1: creating paper requires cutting down trees.
Sentence2: Trees only grow to be cut down.

Output: down


Input:
Sentence1: weathering means breaking down rocks from larger whole into smaller pieces by weather.
Sentence2: Many weather events involve rain.

Output: weather


Input:
Sentence1: All tissues and fluids in our body contain minerals.
Sentence2: Blood in our body contains minerals.

Output: body


Input:
Sentence1: All tissues and fluids in our body contain minerals.
Sentence2: Blood in our body contains minerals.

Output: contain


Input:
Sentence1: All tissues and fluids in our body contain minerals.
Sentence2: Blood in our body contains minerals.

Output: minerals


Input:
Sentence1: All tissues and fluids in our body contain minerals.
Sentence2: Blood in our body contains minerals.

Output: our


Input:
Sentence1: when a hurricane moves over land , that hurricane will decrease in strength.
Sentence2: When hurricanes move over continents, their strength decreases.

Output: decrease


Input:
Sentence1: when a hurricane moves over land , that hurricane will decrease in strength.
Sentence2: When hurricanes move over continents, their strength decreases.

Output: hurricane


Input:
Sentence1: when a hurricane moves over land , that hurricane will decrease in strength.
Sentence2: When hurricanes move over continents, their strength decreases.

Output: moves


Input:
Sentence1: when a hurricane moves over land , that hurricane will decrease in strength.
Sentence2: When hurricanes move over continents, their strength decreases.

Output: over


Input:
Sentence1: when a hurricane moves over land , that hurricane will decrease in strength.
Sentence2: When hurricanes move over continents, their strength decreases.

Output: strength


Input:
Sentence1: medicine is used for curing people when they are sick.
Sentence2: Medicinal Plants See also Medicine .

Output: medicine


Input:
Sentence1: Major crops are corn, peanuts, soybeans and horticultural crops.
Sentence2: Insects can spread disease to things such as corn, peanuts and soybeans.

Output: corn


Input:
Sentence1: Major crops are corn, peanuts, soybeans and horticultural crops.
Sentence2: Insects can spread disease to things such as corn, peanuts and soybeans.

Output: peanuts


Input:
Sentence1: Major crops are corn, peanuts, soybeans and horticultural crops.
Sentence2: Insects can spread disease to things such as corn, peanuts and soybeans.

Output: soybeans


Input:
Sentence1: a sandbar is formed by water moving sediment downstream.
Sentence2: a sandbar is formed by natural erosion.

Output: formed


Input:
Sentence1: a sandbar is formed by water moving sediment downstream.
Sentence2: a sandbar is formed by natural erosion.

Output: sandbar


Input:
Sentence1: a firecracker converts chemical energy into sound.
Sentence2: Particularly interesting waves are sound waves .

Output: sound


Input:
Sentence1: Viruses cause many human diseases.
Sentence2: Viruses cause contamination spreading diseases.

Output: Viruses


Input:
Sentence1: Viruses cause many human diseases.
Sentence2: Viruses cause contamination spreading diseases.

Output: cause


Input:
Sentence1: knowledge of the stars can be used to navigate.
Sentence2: Of course, astronomers also study stars.

Output: stars


Input:
Sentence1: Cerianthids are solitary, tube-dwelling anemones.
Sentence2: cerianthids use darts for defense.

Output: Cerianthids


Input:
Sentence1: medicine is used for curing people when they are sick.
Sentence2: Babies are the MOST inquisitive of people.

Output: people


Input:
Sentence1: an anemometer is used to measure wind speed.
Sentence2: anemometers can measure hurricanes.

Output: anemometer


Input:
Sentence1: an anemometer is used to measure wind speed.
Sentence2: anemometers can measure hurricanes.

Output: measure


Input:
Sentence1: Oncogenes promote the division of cells with damaged DNA.
Sentence2: Oncogenes An oncogene is a gene that is capable of causing cancerous change.

Output: Oncogenes


Input:
Sentence1: hydropower requires damming a river.
Sentence2: damming a river is a source of energy.

Output: damming


Input:
Sentence1: hydropower requires damming a river.
Sentence2: damming a river is a source of energy.

Output: river


Input:
Sentence1: Carbon dioxide is controlled by the carbon cycle.
Sentence2: Carbon dioxide is controled by the carbon circle and is transferred between organisms and atmosphere.

Output: controlled


Input:
Sentence1: Condensation of water vapor occurs during the chilling season.
Sentence2: Beads of water are formed during the chilling season.

Output: chilling


Input:
Sentence1: Condensation of water vapor occurs during the chilling season.
Sentence2: Beads of water are formed during the chilling season.

Output: during


Input:
Sentence1: Condensation of water vapor occurs during the chilling season.
Sentence2: Beads of water are formed during the chilling season.

Output: season


Input:
Sentence1: Some pelycosaurs gave rise to a group of animals called therapsids.
Sentence2: therapsids are animals.

Output: animals


Input:
Sentence1: Some pelycosaurs gave rise to a group of animals called therapsids.
Sentence2: therapsids are animals.

Output: therapsids


Input:
Sentence1: Caverns Secrets are hidden in caves.
Sentence2: hidden caves are formed by carbonic acid in groundwater seeping through rock and dissolving limestone.

Output: are


Input:
Sentence1: Caverns Secrets are hidden in caves.
Sentence2: hidden caves are formed by carbonic acid in groundwater seeping through rock and dissolving limestone.

Output: caves


Input:
Sentence1: Caverns Secrets are hidden in caves.
Sentence2: hidden caves are formed by carbonic acid in groundwater seeping through rock and dissolving limestone.

Output: hidden


Input:
Sentence1: Light is the oscillations in the electric field.
Sentence2: Incandescent bulbs convert electricity into oscillations in the electric field.

Output: electric


Input:
Sentence1: Light is the oscillations in the electric field.
Sentence2: Incandescent bulbs convert electricity into oscillations in the electric field.

Output: field


Input:
Sentence1: Light is the oscillations in the electric field.
Sentence2: Incandescent bulbs convert electricity into oscillations in the electric field.

Output: oscillations


Input:
Sentence1: Light passing through a prism is refracted or divided into the colors of the spectrum.
Sentence2: A prism is used to split light into colors.

Output: Light


Input:
Sentence1: Interstellar space contains a plasma.
Sentence2: interstellar space contains electrons, atoms, and stars.

Output: Interstellar


Input:
Sentence1: Interstellar space contains a plasma.
Sentence2: interstellar space contains electrons, atoms, and stars.

Output: space


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters ecosystems from the sun.

Output: Energy


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters ecosystems from the sun.

Output: ecosystems


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters ecosystems from the sun.

Output: enters


Input:
Sentence1: Largest of the oceans on Earth is the Pacific Ocean .
Sentence2: the gravitational pull of the Moon on the Pacific causes the tides.

Output: Pacific


Input:
Sentence1: harming an animal species has a negative impact on the population size of that species.
Sentence2: harming an animal species has a negative impact on the sub-units of species.

Output: animal


Input:
Sentence1: harming an animal species has a negative impact on the population size of that species.
Sentence2: harming an animal species has a negative impact on the sub-units of species.

Output: harming


Input:
Sentence1: harming an animal species has a negative impact on the population size of that species.
Sentence2: harming an animal species has a negative impact on the sub-units of species.

Output: impact


Input:
Sentence1: harming an animal species has a negative impact on the population size of that species.
Sentence2: harming an animal species has a negative impact on the sub-units of species.

Output: negative


Input:
Sentence1: harming an animal species has a negative impact on the population size of that species.
Sentence2: harming an animal species has a negative impact on the sub-units of species.

Output: species


Input:
Sentence1: Fungi have special structures for penetrating a host.
Sentence2: Host tissue penetration occurs to the point of vascular connectivity.

Output: penetrating


Input:
Sentence1: Most hormones are regulated by feedback mechanisms.
Sentence2: estrogen is regulated by feedback mechanisms.

Output: feedback


Input:
Sentence1: Most hormones are regulated by feedback mechanisms.
Sentence2: estrogen is regulated by feedback mechanisms.

Output: mechanisms


Input:
Sentence1: Most hormones are regulated by feedback mechanisms.
Sentence2: estrogen is regulated by feedback mechanisms.

Output: regulated


Input:
Sentence1: Blood carries oxygen to the brain.
Sentence2: brain cells die quickly if blood is cut off.

Output: Blood


Input:
Sentence1: Insects spread disease and destroy crops.
Sentence2: insects cause farmers to receive government reimbursement.

Output: Insects


Input:
Sentence1: increasing heat causes thermal expansion.
Sentence2: Thermal fatigue cracking is notably different than thermal expansion damage.

Output: thermal


Input:
Sentence1: a warm front causes cloudy and rainy weather.
Sentence2: If warm air is advancing on cold air, the front is designated a warm front.

Output: front


Input:
Sentence1: a warm front causes cloudy and rainy weather.
Sentence2: If warm air is advancing on cold air, the front is designated a warm front.

Output: warm


Input:
Sentence1: seat belts are used for preventing injuries to passengers in cars.
Sentence2: Seat belts are used for avoiding injuries in crashes for passengers.

Output: belts


Input:
Sentence1: seat belts are used for preventing injuries to passengers in cars.
Sentence2: Seat belts are used for avoiding injuries in crashes for passengers.

Output: seat


Input:
Sentence1: seat belts are used for preventing injuries to passengers in cars.
Sentence2: Seat belts are used for avoiding injuries in crashes for passengers.

Output: used


Input:
Sentence1: boulders are formed by glaciers melting sometimes.
Sentence2: Sediment in melted ice can sometimes eventually form boulders.

Output: boulders


Input:
Sentence1: Life's main property is the ability to reproduce.
Sentence2: Complex chemistry is needed to carry out all the functions of that which can reproduce.

Output: reproduce


Input:
Sentence1: Octopuses spray a cloud of ink at their predators.
Sentence2: Octopuses spray a cloud for hiding from predators.

Output: cloud


Input:
Sentence1: Octopuses spray a cloud of ink at their predators.
Sentence2: Octopuses spray a cloud for hiding from predators.

Output: spray


Input:
Sentence1: When the pituitary produces FSH and LH, the ovaries respond by producing eggs.
Sentence2: Hormones tell the ovaries to produce eggs.

Output: eggs


Input:
Sentence1: When the pituitary produces FSH and LH, the ovaries respond by producing eggs.
Sentence2: Hormones tell the ovaries to produce eggs.

Output: ovaries


Input:
Sentence1: When the pituitary produces FSH and LH, the ovaries respond by producing eggs.
Sentence2: Hormones tell the ovaries to produce eggs.

Output: producing


Input:
Sentence1: conserving resources has a positive impact on the environment.
Sentence2: Recycled products have a positive impact on the environment.

Output: environment


Input:
Sentence1: conserving resources has a positive impact on the environment.
Sentence2: Recycled products have a positive impact on the environment.

Output: impact


Input:
Sentence1: conserving resources has a positive impact on the environment.
Sentence2: Recycled products have a positive impact on the environment.

Output: positive


Input:
Sentence1: Lymph is a fluid that leaks out of capillaries into spaces between cells.
Sentence2: Capillaries are microscopic vessels.

Output: capillaries


Input:
Sentence1: Alternation of generations allows for both asexual and sexual reproduction.
Sentence2: plants allow for both asexual and sexual reproduction.

Output: allows


Input:
Sentence1: Alternation of generations allows for both asexual and sexual reproduction.
Sentence2: plants allow for both asexual and sexual reproduction.

Output: asexual


Input:
Sentence1: Alternation of generations allows for both asexual and sexual reproduction.
Sentence2: plants allow for both asexual and sexual reproduction.

Output: reproduction


Input:
Sentence1: Alternation of generations allows for both asexual and sexual reproduction.
Sentence2: plants allow for both asexual and sexual reproduction.

Output: sexual


Input:
Sentence1: Bacteria thrive in higher temperatures.
Sentence2: Higher temperatures cause food to spoil.

Output: higher


Input:
Sentence1: Bacteria thrive in higher temperatures.
Sentence2: Higher temperatures cause food to spoil.

Output: temperatures


Input:
Sentence1: when a cooler object touches a warmer object , thermal conduction occurs.
Sentence2: Heat sinks are designed to be cooler than the objects they're in contact with.

Output: cooler


Input:
Sentence1: when a cooler object touches a warmer object , thermal conduction occurs.
Sentence2: Heat sinks are designed to be cooler than the objects they're in contact with.

Output: object


Input:
Sentence1: when a cooler object touches a warmer object , thermal conduction occurs.
Sentence2: Heat sinks are designed to be cooler than the objects they're in contact with.

Output: touches


Input:
Sentence1: oil is formed by layers of sediment pushing down on decomposing algae.
Sentence2: Oil can be formed by sediment pushing down on simple green plants.

Output: by


Input:
Sentence1: oil is formed by layers of sediment pushing down on decomposing algae.
Sentence2: Oil can be formed by sediment pushing down on simple green plants.

Output: down


Input:
Sentence1: oil is formed by layers of sediment pushing down on decomposing algae.
Sentence2: Oil can be formed by sediment pushing down on simple green plants.

Output: formed


Input:
Sentence1: oil is formed by layers of sediment pushing down on decomposing algae.
Sentence2: Oil can be formed by sediment pushing down on simple green plants.

Output: is


Input:
Sentence1: oil is formed by layers of sediment pushing down on decomposing algae.
Sentence2: Oil can be formed by sediment pushing down on simple green plants.

Output: oil


Input:
Sentence1: oil is formed by layers of sediment pushing down on decomposing algae.
Sentence2: Oil can be formed by sediment pushing down on simple green plants.

Output: pushing


Input:
Sentence1: oil is formed by layers of sediment pushing down on decomposing algae.
Sentence2: Oil can be formed by sediment pushing down on simple green plants.

Output: sediment


Input:
Sentence1: uneven heating of the Earth 's surface cause wind.
Sentence2: Uneven heating of the Earth's surface causes destruction to homes and businesses.

Output: Earth


Input:
Sentence1: uneven heating of the Earth 's surface cause wind.
Sentence2: Uneven heating of the Earth's surface causes destruction to homes and businesses.

Output: cause


Input:
Sentence1: uneven heating of the Earth 's surface cause wind.
Sentence2: Uneven heating of the Earth's surface causes destruction to homes and businesses.

Output: heating


Input:
Sentence1: uneven heating of the Earth 's surface cause wind.
Sentence2: Uneven heating of the Earth's surface causes destruction to homes and businesses.

Output: surface


Input:
Sentence1: uneven heating of the Earth 's surface cause wind.
Sentence2: Uneven heating of the Earth's surface causes destruction to homes and businesses.

Output: uneven


Input:
Sentence1: Ethologists usually study how animals behave in their natural environment.
Sentence2: Ethologists study animal behavior.

Output: Ethologists


Input:
Sentence1: Passive immunity lasts only as long as the antibodies survive in body fluids.
Sentence2: Passive immunity diminishes with time.

Output: Passive


Input:
Sentence1: Passive immunity lasts only as long as the antibodies survive in body fluids.
Sentence2: Passive immunity diminishes with time.

Output: immunity


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: wood ducks can feed at more than one trophic level.

Output: feed


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: wood ducks can feed at more than one trophic level.

Output: level


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: wood ducks can feed at more than one trophic level.

Output: more


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: wood ducks can feed at more than one trophic level.

Output: one


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: wood ducks can feed at more than one trophic level.

Output: than


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: wood ducks can feed at more than one trophic level.

Output: trophic


Input:
Sentence1: The Purpose of Refrigeration The fundamental reason for having a refrigerator is to keep food cold.
Sentence2: a refrigerator keeps food fresh.

Output: refrigerator


Input:
Sentence1: an animal requires warmth for survival.
Sentence2: Cubs are born in the winter and nestle in their mother's fur for warmth and to nurse.

Output: warmth


Input:
Sentence1: recycling has a positive impact on the environment.
Sentence2: Environments are places where something lives.

Output: environment


Input:
Sentence1: Climate too dry, making the environment arid and inhospitable.
Sentence2: conserving water can be used for survival in arid locales.

Output: arid


Input:
Sentence1: Birds, like all living things, have intrinsic value.
Sentence2: poison causes harm to birds.

Output: Birds


Input:
Sentence1: Proteins are manufactured at the ribosomes.
Sentence2: molecules of tRNA bringing amino acids in the correct sequence manufactures proteins.

Output: Proteins


Input:
Sentence1: Proteins are manufactured at the ribosomes.
Sentence2: molecules of tRNA bringing amino acids in the correct sequence manufactures proteins.

Output: manufactured


Input:
Sentence1: wind is used for producing electricity.
Sentence2: Winds are caused by pressure differences.

Output: wind


Input:
Sentence1: decomposition increases the amount of nutrients in the soil.
Sentence2: Most soil organisms are responsible for decomposition and nutrient cycling.

Output: decomposition


Input:
Sentence1: gravity causes objects that have mass to be pulled down on a planet.
Sentence2: And roller coasters work with gravity.

Output: gravity


Input:
Sentence1: Examples of monotremes are the Platypus and Echidna.
Sentence2: Platypus and echidna lack a uterus and vagina.

Output: Echidna


Input:
Sentence1: Examples of monotremes are the Platypus and Echidna.
Sentence2: Platypus and echidna lack a uterus and vagina.

Output: Platypus


Input:
Sentence1: Bladder infections can be treated with antibiotics prescribed by a doctor.
Sentence2: If it is viral, no antibiotics are indicated.

Output: antibiotics


Input:
Sentence1: Sperm and seminal fluid are released into the urethra during sperm transfer to the female.
Sentence2: Seminal fluid is passed out of the body to the female through the urethra.

Output: female


Input:
Sentence1: Sperm and seminal fluid are released into the urethra during sperm transfer to the female.
Sentence2: Seminal fluid is passed out of the body to the female through the urethra.

Output: fluid


Input:
Sentence1: Sperm and seminal fluid are released into the urethra during sperm transfer to the female.
Sentence2: Seminal fluid is passed out of the body to the female through the urethra.

Output: seminal


Input:
Sentence1: dropping an object into water causes vibrations in the water.
Sentence2: Water, for example, is a liquid.

Output: water


Input:
Sentence1: Pollen consists of tiny grains that are the male gametes of plants.
Sentence2: Flowers are the sex organs of certain plants and hold the male and female gamete producing systems.

Output: gametes


Input:
Sentence1: Pollen consists of tiny grains that are the male gametes of plants.
Sentence2: Flowers are the sex organs of certain plants and hold the male and female gamete producing systems.

Output: male


Input:
Sentence1: Another animal that lives within the Marine Biome is a sea tiger.
Sentence2: Sea tigers must adapt to the salt in the water.

Output: sea


Input:
Sentence1: Another animal that lives within the Marine Biome is a sea tiger.
Sentence2: Sea tigers must adapt to the salt in the water.

Output: tiger


Input:
Sentence1: Freeze-drying Freeze drying is a method of preserving materials.
Sentence2: Freeze drying food keeps it viable for extended flights.

Output: Freeze


Input:
Sentence1: Freeze-drying Freeze drying is a method of preserving materials.
Sentence2: Freeze drying food keeps it viable for extended flights.

Output: drying


Input:
Sentence1: Ozone depletion results in higher levels of UV radiation reaching Earth.
Sentence2: If there is an increase in UV radiation, the risks go up for all types of skin cancer.

Output: UV


Input:
Sentence1: Ozone depletion results in higher levels of UV radiation reaching Earth.
Sentence2: If there is an increase in UV radiation, the risks go up for all types of skin cancer.

Output: radiation


Input:
Sentence1: All cnidarians are aquatic.
Sentence2: all cnidarians live in the water.

Output: cnidarians


Input:
Sentence1: Halogen light bulbs generate heat.
Sentence2: Halogen bulbs convert electricity into heat.

Output: Halogen


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

Output: connective


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

Output: fluid


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

Output: tissue


Input:
Sentence1: energy is used for heating a building by a heating system.
Sentence2: Architects create structures that use energy for heating.

Output: energy


Input:
Sentence1: energy is used for heating a building by a heating system.
Sentence2: Architects create structures that use energy for heating.

Output: heating


Input:
Sentence1: energy is used for heating a building by a heating system.
Sentence2: Architects create structures that use energy for heating.

Output: used


Input:
Sentence1: Most electricity is created with a turbine generator.
Sentence2: most buildings are heated with turbine generators.

Output: Most


Input:
Sentence1: Most electricity is created with a turbine generator.
Sentence2: most buildings are heated with turbine generators.

Output: generator


Input:
Sentence1: Most electricity is created with a turbine generator.
Sentence2: most buildings are heated with turbine generators.

Output: turbine


Input:
Sentence1: Cnidarians are also called coelenterates.
Sentence2: coelenterates are aquatic.

Output: coelenterates


Input:
Sentence1: Asbestos is a dangerous carcinogen.
Sentence2: Asbestos causes cancer.

Output: Asbestos


Input:
Sentence1: Feathers help birds fly and provide insulation.
Sentence2: To survive the chill, warm-blooded penguins rely on feathers and fat for insulation.

Output: insulation


Input:
Sentence1: if humans disturb animals in a location then those animals will move to a different location.
Sentence2: The human being is self-aware.

Output: humans


Input:
Sentence1: volcanic ash in the atmosphere decreases the temperature by blocking the sun.
Sentence2: Or a veil of tiny particles from a volcanic eruption can block the sun.

Output: volcanic


Input:
Sentence1: if an animal lives under ground then that animal will be protected from a wild fire.
Sentence2: Animals living under ground deal with fire remarkably well.

Output: animal


Input:
Sentence1: if an animal lives under ground then that animal will be protected from a wild fire.
Sentence2: Animals living under ground deal with fire remarkably well.

Output: ground


Input:
Sentence1: if an animal lives under ground then that animal will be protected from a wild fire.
Sentence2: Animals living under ground deal with fire remarkably well.

Output: lives


Input:
Sentence1: if an animal lives under ground then that animal will be protected from a wild fire.
Sentence2: Animals living under ground deal with fire remarkably well.

Output: under


Input:
Sentence1: a firecracker converts chemical energy into sound.
Sentence2: a firecracker converts chemical energy into what we hear.

Output: chemical


Input:
Sentence1: a firecracker converts chemical energy into sound.
Sentence2: a firecracker converts chemical energy into what we hear.

Output: converts


Input:
Sentence1: a firecracker converts chemical energy into sound.
Sentence2: a firecracker converts chemical energy into what we hear.

Output: energy


Input:
Sentence1: a firecracker converts chemical energy into sound.
Sentence2: a firecracker converts chemical energy into what we hear.

Output: firecracker


Input:
Sentence1: a firecracker converts chemical energy into sound.
Sentence2: a firecracker converts chemical energy into what we hear.

Output: into


Input:
Sentence1: a flashlight requires a source of electricity to produce light.
Sentence2: Electrical energy is also energy.

Output: electricity


Input:
Sentence1: Rainy clouds cause rain, and excess water vapor from clouds is the basis of rainbows.
Sentence2: Condensation can lead to rain.

Output: rain


Input:
Sentence1: a planet rotating causes cycles of day and night on that planet.
Sentence2: a planet's rotation is what causes night.

Output: night


Input:
Sentence1: Pheromones are hormones that are thought to stimulate, through smell, sexual reactions in animals.
Sentence2: male dogs use smell to mark their territory.

Output: smell


Input:
Sentence1: gases from burning coal and oil dissolving in water in the atmosphere causes acid rain.
Sentence2: power stations which generate electricity produce gases in the atmosphere cause acid rain.

Output: acid


Input:
Sentence1: gases from burning coal and oil dissolving in water in the atmosphere causes acid rain.
Sentence2: power stations which generate electricity produce gases in the atmosphere cause acid rain.

Output: atmosphere


Input:
Sentence1: gases from burning coal and oil dissolving in water in the atmosphere causes acid rain.
Sentence2: power stations which generate electricity produce gases in the atmosphere cause acid rain.

Output: causes


Input:
Sentence1: gases from burning coal and oil dissolving in water in the atmosphere causes acid rain.
Sentence2: power stations which generate electricity produce gases in the atmosphere cause acid rain.

Output: gases


Input:
Sentence1: gases from burning coal and oil dissolving in water in the atmosphere causes acid rain.
Sentence2: power stations which generate electricity produce gases in the atmosphere cause acid rain.

Output: rain


Input:
Sentence1: a human requires sleep to be healthy.
Sentence2: Perhaps, that sleep is a restorative process.

Output: sleep


Input:
Sentence1: a gasoline lawn mower converts gasoline into motion.
Sentence2: Gasoline mowers can have as much emission as a car.

Output: gasoline


Input:
Sentence1: a gasoline lawn mower converts gasoline into motion.
Sentence2: Gasoline mowers can have as much emission as a car.

Output: mower


Input:
Sentence1: boulders are formed by glaciers melting sometimes.
Sentence2: Alpine glaciers form in the mountains.

Output: glaciers


Input:
Sentence1: Infancy is the period of most rapid growth after birth.
Sentence2: When a person is born, a birth certificate is written up to record their birth.

Output: birth


Input:
Sentence1: Flowing water can slowly dissolve carbon in sedimentary rock.
Sentence2: Water which moves or flows is a force.

Output: Flowing


Input:
Sentence1: disease has a negative impact on an organism.
Sentence2: Pathogens have a negative impact on an organism?.

Output: an


Input:
Sentence1: disease has a negative impact on an organism.
Sentence2: Pathogens have a negative impact on an organism?.

Output: has


Input:
Sentence1: disease has a negative impact on an organism.
Sentence2: Pathogens have a negative impact on an organism?.

Output: impact


Input:
Sentence1: disease has a negative impact on an organism.
Sentence2: Pathogens have a negative impact on an organism?.

Output: negative


Input:
Sentence1: disease has a negative impact on an organism.
Sentence2: Pathogens have a negative impact on an organism?.

Output: on


Input:
Sentence1: disease has a negative impact on an organism.
Sentence2: Pathogens have a negative impact on an organism?.

Output: organism


Input:
Sentence1: DNA can reproduce itself.
Sentence2: viruses can reproduce themselves.

Output: reproduce


Input:
Sentence1: Hair helps to insulate and protect the body.
Sentence2: most mammals have insulation that also protects the body.

Output: body


Input:
Sentence1: Hair helps to insulate and protect the body.
Sentence2: most mammals have insulation that also protects the body.

Output: insulate


Input:
Sentence1: Hair helps to insulate and protect the body.
Sentence2: most mammals have insulation that also protects the body.

Output: protect


Input:
Sentence1: bacteria can cause people to become ill.
Sentence2: parasites can cause illness.

Output: ill


Input:
Sentence1: Among the small inorganic molecules which are economically attractive are CO and H 2 .
Sentence2: Producers make food from CO and H 2.

Output: 2


Input:
Sentence1: Among the small inorganic molecules which are economically attractive are CO and H 2 .
Sentence2: Producers make food from CO and H 2.

Output: CO


Input:
Sentence1: Among the small inorganic molecules which are economically attractive are CO and H 2 .
Sentence2: Producers make food from CO and H 2.

Output: H


Input:
Sentence1: sexual reproduction increases genetic diversity.
Sentence2: sexual reproduction allows evolution to continue.

Output: reproduction


Input:
Sentence1: sexual reproduction increases genetic diversity.
Sentence2: sexual reproduction allows evolution to continue.

Output: sexual


Input:
Sentence1: Toxin or toxine, means poison.
Sentence2: cuticle helps prevent damage from poison.

Output: poison


Input:
Sentence1: Sponges have specialized cells called collar cells.
Sentence2: sponges have specialized cells that have a flagellum.

Output: Sponges


Input:
Sentence1: Sponges have specialized cells called collar cells.
Sentence2: sponges have specialized cells that have a flagellum.

Output: cells


Input:
Sentence1: Sponges have specialized cells called collar cells.
Sentence2: sponges have specialized cells that have a flagellum.

Output: specialized


Input:
Sentence1: extreme heat and pressure change rock into metamorphic rock.
Sentence2: Metamorphic Rocks Metamorphic Rocks Metamorphic rocks are formed by pressure and heat.

Output: metamorphic


Input:
Sentence1: Rulers are divided into inches and fractions of inches.
Sentence2: The length of an object can be measured in inches or fractions of inches.

Output: fractions


Input:
Sentence1: Rulers are divided into inches and fractions of inches.
Sentence2: The length of an object can be measured in inches or fractions of inches.

Output: inches


Input:
Sentence1: Rulers are divided into inches and fractions of inches.
Sentence2: The length of an object can be measured in inches or fractions of inches.

Output: of


Input:
Sentence1: Amphibians have sense organs to smell and taste chemicals.
Sentence2: Amphibians have a chemical sensing system.

Output: Amphibians


Input:
Sentence1: Amphibians have sense organs to smell and taste chemicals.
Sentence2: Amphibians have a chemical sensing system.

Output: have


Input:
Sentence1: Marble Marble is a metamorphic rock.
Sentence2: extreme heat and pressure create Marble.

Output: Marble


Input:
Sentence1: Reproduction is the process by which organisms give rise to offspring.
Sentence2: Reproduction is the process by which organisms give rise to the next generation.

Output: Reproduction


Input:
Sentence1: Reproduction is the process by which organisms give rise to offspring.
Sentence2: Reproduction is the process by which organisms give rise to the next generation.

Output: organisms


Input:
Sentence1: Pollination is the fertilization step in the sexual reproduction of plants.
Sentence2: Insect Pollinators Learn about pollination and why insect pollinators are important in the garden.

Output: Pollination


Input:
Sentence1: Fall rains cause the germination of the annual grassland plants that grow slowly during winter and then grow rapidly in the spring as temperatures rise.
Sentence2: Water vapor causes plants to grow.

Output: grow


Input:
Sentence1: Optical glass diopters allow ultra-close focusing.
Sentence2: glass instruments allow close observations.

Output: allow


Input:
Sentence1: Optical glass diopters allow ultra-close focusing.
Sentence2: glass instruments allow close observations.

Output: glass


Input:
Sentence1: the emission of sulfur dioxide causes acid rain.
Sentence2: the emission of SO2 causes acid rain.

Output: acid


Input:
Sentence1: the emission of sulfur dioxide causes acid rain.
Sentence2: the emission of SO2 causes acid rain.

Output: causes


Input:
Sentence1: the emission of sulfur dioxide causes acid rain.
Sentence2: the emission of SO2 causes acid rain.

Output: emission


Input:
Sentence1: the emission of sulfur dioxide causes acid rain.
Sentence2: the emission of SO2 causes acid rain.

Output: rain


Input:
Sentence1: Evolution is a change in the characteristics of living things over time.
Sentence2: On the other hand, the environment causes all living things to adapt.

Output: living


Input:
Sentence1: Evolution is a change in the characteristics of living things over time.
Sentence2: On the other hand, the environment causes all living things to adapt.

Output: things


Input:
Sentence1: when a body of water receives more water than it can hold , a flood occurs.
Sentence2: Spores are washed into the field in flood water.

Output: flood


Input:
Sentence1: Amphibians have sense organs to smell and taste chemicals.
Sentence2: Frogs, toads, and salamanders have sense organs to smell and taste chemicals.

Output: chemicals


Input:
Sentence1: Amphibians have sense organs to smell and taste chemicals.
Sentence2: Frogs, toads, and salamanders have sense organs to smell and taste chemicals.

Output: organs


Input:
Sentence1: Amphibians have sense organs to smell and taste chemicals.
Sentence2: Frogs, toads, and salamanders have sense organs to smell and taste chemicals.

Output: sense


Input:
Sentence1: Amphibians have sense organs to smell and taste chemicals.
Sentence2: Frogs, toads, and salamanders have sense organs to smell and taste chemicals.

Output: smell


Input:
Sentence1: Amphibians have sense organs to smell and taste chemicals.
Sentence2: Frogs, toads, and salamanders have sense organs to smell and taste chemicals.

Output: taste


Input:
Sentence1: Basic unit of the plant body is the cell.
Sentence2: Basic units of the plant body vary in size as well as shape, but all are very small.

Output: Basic


Input:
Sentence1: Basic unit of the plant body is the cell.
Sentence2: Basic units of the plant body vary in size as well as shape, but all are very small.

Output: body


Input:
Sentence1: Basic unit of the plant body is the cell.
Sentence2: Basic units of the plant body vary in size as well as shape, but all are very small.

Output: plant


Input:
Sentence1: Basic unit of the plant body is the cell.
Sentence2: Basic units of the plant body vary in size as well as shape, but all are very small.

Output: unit


Input:
Sentence1: Antigens are molecules that the immune system recognizes as foreign to the body.
Sentence2: An antibody binds to an antigen .

Output: Antigens


Input:
Sentence1: Smog also contains particulates.
Sentence2: VOCs and NOx are smog formers.

Output: Smog


Input:
Sentence1: an animal requires air for survival.
Sentence2: The Moon has no atmosphere and no air.

Output: air


Input:
Sentence1: Soil can be depleted of nutrients.
Sentence2: Soil can be depleted of nitrogen.

Output: Soil


Input:
Sentence1: Soil can be depleted of nutrients.
Sentence2: Soil can be depleted of nitrogen.

Output: depleted


Input:
Sentence1: Most plants grow roots down into the soil to absorb water and minerals.
Sentence2: The need for plants to absorb minerals and water from the soil also leads to them preventing soil erosion.

Output: absorb


Input:
Sentence1: Most plants grow roots down into the soil to absorb water and minerals.
Sentence2: The need for plants to absorb minerals and water from the soil also leads to them preventing soil erosion.

Output: minerals


Input:
Sentence1: Most plants grow roots down into the soil to absorb water and minerals.
Sentence2: The need for plants to absorb minerals and water from the soil also leads to them preventing soil erosion.

Output: water


Input:
Sentence1: a spider web is used to capture food by spiders.
Sentence2: Crab spiders spin no webs.

Output: spider


Input:
Sentence1: Toads and frogs are both amphibians.
Sentence2: Toads have a relatively complex circulatory system with a three chambered heart.

Output: Toads


Input:
Sentence1: Recyclability and recycling of materials is essential.
Sentence2: It is essential to reduce resources needed to make things.

Output: essential


Input:
Sentence1: Fish have a circulatory system with a two-chambered heart.
Sentence2: Salmon and trout have a circulatory system with a two-chambered heart.

Output: circulatory


Input:
Sentence1: Fish have a circulatory system with a two-chambered heart.
Sentence2: Salmon and trout have a circulatory system with a two-chambered heart.

Output: heart


Input:
Sentence1: Fish have a circulatory system with a two-chambered heart.
Sentence2: Salmon and trout have a circulatory system with a two-chambered heart.

Output: system


Input:
Sentence1: Fish have a circulatory system with a two-chambered heart.
Sentence2: Salmon and trout have a circulatory system with a two-chambered heart.

Output: two-chambered


Input:
Sentence1: when an electrical circuit is working properly , electrical current runs through that circuit.
Sentence2: When an electrical circuit is working properly , electric charge runs through that circuit.

Output: circuit


Input:
Sentence1: when an electrical circuit is working properly , electrical current runs through that circuit.
Sentence2: When an electrical circuit is working properly , electric charge runs through that circuit.

Output: electrical


Input:
Sentence1: when an electrical circuit is working properly , electrical current runs through that circuit.
Sentence2: When an electrical circuit is working properly , electric charge runs through that circuit.

Output: properly


Input:
Sentence1: when an electrical circuit is working properly , electrical current runs through that circuit.
Sentence2: When an electrical circuit is working properly , electric charge runs through that circuit.

Output: runs


Input:
Sentence1: when an electrical circuit is working properly , electrical current runs through that circuit.
Sentence2: When an electrical circuit is working properly , electric charge runs through that circuit.

Output: through


Input:
Sentence1: when an electrical circuit is working properly , electrical current runs through that circuit.
Sentence2: When an electrical circuit is working properly , electric charge runs through that circuit.

Output: working


Input:
Sentence1: skin is used for protecting the body from harmful substances.
Sentence2: Skin is comprised of two layers, the epidermis and dermis.

Output: skin


Input:
Sentence1: Tobacco smoke consists of solid particles and gases.
Sentence2: Lung cancer is most often caused by exposure to solid particles and gases.

Output: gases


Input:
Sentence1: Tobacco smoke consists of solid particles and gases.
Sentence2: Lung cancer is most often caused by exposure to solid particles and gases.

Output: particles


Input:
Sentence1: Tobacco smoke consists of solid particles and gases.
Sentence2: Lung cancer is most often caused by exposure to solid particles and gases.

Output: solid


Input:
Sentence1: Cells secrete acids and bases to maintain the proper pH for enzymes to work.
Sentence2: For biological catalysts to be able to work, cells secrete acids and bases to maintain proper pH.

Output: Cells


Input:
Sentence1: Cells secrete acids and bases to maintain the proper pH for enzymes to work.
Sentence2: For biological catalysts to be able to work, cells secrete acids and bases to maintain proper pH.

Output: acids


Input:
Sentence1: Cells secrete acids and bases to maintain the proper pH for enzymes to work.
Sentence2: For biological catalysts to be able to work, cells secrete acids and bases to maintain proper pH.

Output: bases


Input:
Sentence1: Cells secrete acids and bases to maintain the proper pH for enzymes to work.
Sentence2: For biological catalysts to be able to work, cells secrete acids and bases to maintain proper pH.

Output: maintain


Input:
Sentence1: Cells secrete acids and bases to maintain the proper pH for enzymes to work.
Sentence2: For biological catalysts to be able to work, cells secrete acids and bases to maintain proper pH.

Output: pH


Input:
Sentence1: Cells secrete acids and bases to maintain the proper pH for enzymes to work.
Sentence2: For biological catalysts to be able to work, cells secrete acids and bases to maintain proper pH.

Output: proper


Input:
Sentence1: Cells secrete acids and bases to maintain the proper pH for enzymes to work.
Sentence2: For biological catalysts to be able to work, cells secrete acids and bases to maintain proper pH.

Output: secrete


Input:
Sentence1: tectonic plates being pushed together causes earthquakes.
Sentence2: tectonic plates being pushed together causes massive damage.

Output: being


Input:
Sentence1: tectonic plates being pushed together causes earthquakes.
Sentence2: tectonic plates being pushed together causes massive damage.

Output: causes


Input:
Sentence1: tectonic plates being pushed together causes earthquakes.
Sentence2: tectonic plates being pushed together causes massive damage.

Output: plates


Input:
Sentence1: tectonic plates being pushed together causes earthquakes.
Sentence2: tectonic plates being pushed together causes massive damage.

Output: pushed


Input:
Sentence1: tectonic plates being pushed together causes earthquakes.
Sentence2: tectonic plates being pushed together causes massive damage.

Output: tectonic


Input:
Sentence1: tectonic plates being pushed together causes earthquakes.
Sentence2: tectonic plates being pushed together causes massive damage.

Output: together


Input:
Sentence1: Liquid volume is measured using a unit called a liter.
Sentence2: A graduated cyliner measures in liters.

Output: liter


Input:
Sentence1: Birds have relatively large brains and a high level of intelligence.
Sentence2: Animals in class aves have relatively large brains and a high level of intelligence.

Output: a


Input:
Sentence1: Birds have relatively large brains and a high level of intelligence.
Sentence2: Animals in class aves have relatively large brains and a high level of intelligence.

Output: and


Input:
Sentence1: Birds have relatively large brains and a high level of intelligence.
Sentence2: Animals in class aves have relatively large brains and a high level of intelligence.

Output: brains


Input:
Sentence1: Birds have relatively large brains and a high level of intelligence.
Sentence2: Animals in class aves have relatively large brains and a high level of intelligence.

Output: have


Input:
Sentence1: Birds have relatively large brains and a high level of intelligence.
Sentence2: Animals in class aves have relatively large brains and a high level of intelligence.

Output: high


Input:
Sentence1: Birds have relatively large brains and a high level of intelligence.
Sentence2: Animals in class aves have relatively large brains and a high level of intelligence.

Output: intelligence


Input:
Sentence1: Birds have relatively large brains and a high level of intelligence.
Sentence2: Animals in class aves have relatively large brains and a high level of intelligence.

Output: large


Input:
Sentence1: Birds have relatively large brains and a high level of intelligence.
Sentence2: Animals in class aves have relatively large brains and a high level of intelligence.

Output: level


Input:
Sentence1: Birds have relatively large brains and a high level of intelligence.
Sentence2: Animals in class aves have relatively large brains and a high level of intelligence.

Output: of


Input:
Sentence1: Birds have relatively large brains and a high level of intelligence.
Sentence2: Animals in class aves have relatively large brains and a high level of intelligence.

Output: relatively


Input:
Sentence1: Insects can spread disease and destroy crops.
Sentence2: Insects can spread disease to things such as corn, peanuts and soybeans.

Output: Insects


Input:
Sentence1: Insects can spread disease and destroy crops.
Sentence2: Insects can spread disease to things such as corn, peanuts and soybeans.

Output: disease


Input:
Sentence1: Insects can spread disease and destroy crops.
Sentence2: Insects can spread disease to things such as corn, peanuts and soybeans.

Output: spread


Input:
Sentence1: Birds build their nests in the Trees.
Sentence2: Something that builds nests in trees moves their wings using muscles in the chest.

Output: Trees


Input:
Sentence1: Birds build their nests in the Trees.
Sentence2: Something that builds nests in trees moves their wings using muscles in the chest.

Output: build


Input:
Sentence1: Birds build their nests in the Trees.
Sentence2: Something that builds nests in trees moves their wings using muscles in the chest.

Output: nests


Input:
Sentence1: Flowing water can slowly dissolve carbon in sedimentary rock.
Sentence2: flowing water can slowly dissolve carbon in limestone.

Output: Flowing


Input:
Sentence1: Flowing water can slowly dissolve carbon in sedimentary rock.
Sentence2: flowing water can slowly dissolve carbon in limestone.

Output: carbon


Input:
Sentence1: Flowing water can slowly dissolve carbon in sedimentary rock.
Sentence2: flowing water can slowly dissolve carbon in limestone.

Output: dissolve


Input:
Sentence1: Flowing water can slowly dissolve carbon in sedimentary rock.
Sentence2: flowing water can slowly dissolve carbon in limestone.

Output: slowly


Input:
Sentence1: Flowing water can slowly dissolve carbon in sedimentary rock.
Sentence2: flowing water can slowly dissolve carbon in limestone.

Output: water


Input:
Sentence1: Sweating reduces body heat.
Sentence2: Clothing can have an impact on the effectiveness of sweating to cool the body.

Output: Sweating


Input:
Sentence1: a laser is used for producing light.
Sentence2: Lasers are an incredibly-powerful research tool.

Output: laser


Input:
Sentence1: Vesicle transport requires energy, so it is also a form of active transport.
Sentence2: Absorption is a form of vesicle transport that requires energy.

Output: Vesicle


Input:
Sentence1: Vesicle transport requires energy, so it is also a form of active transport.
Sentence2: Absorption is a form of vesicle transport that requires energy.

Output: energy


Input:
Sentence1: Vesicle transport requires energy, so it is also a form of active transport.
Sentence2: Absorption is a form of vesicle transport that requires energy.

Output: requires


Input:
Sentence1: Vesicle transport requires energy, so it is also a form of active transport.
Sentence2: Absorption is a form of vesicle transport that requires energy.

Output: transport


Input:
Sentence1: Overexposure to sound can damage hearing.
Sentence2: overexposure to vibrating matter can damage hearing.

Output: Overexposure


Input:
Sentence1: Overexposure to sound can damage hearing.
Sentence2: overexposure to vibrating matter can damage hearing.

Output: damage


Input:
Sentence1: Overexposure to sound can damage hearing.
Sentence2: overexposure to vibrating matter can damage hearing.

Output: hearing


Input:
Sentence1: water vapor condensing in clouds causes rain.
Sentence2: When it rains, the rain moistens the soil.

Output: rain


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: Many earthquakes occur when the earth's crustal plates grind and shift along one another.

Output: crustal


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: Many earthquakes occur when the earth's crustal plates grind and shift along one another.

Output: plates


Input:
Sentence1: a calculator is used for adding.
Sentence2: Around 500 BC, the abacus, the first mechanical calculator, was developed.

Output: calculator


Input:
Sentence1: Adolescents are in the school leaving age.
Sentence2: The school leaving age is a time of significant mental, emotional, and social changes.

Output: age


Input:
Sentence1: Adolescents are in the school leaving age.
Sentence2: The school leaving age is a time of significant mental, emotional, and social changes.

Output: leaving


Input:
Sentence1: Adolescents are in the school leaving age.
Sentence2: The school leaving age is a time of significant mental, emotional, and social changes.

Output: school


Input:
Sentence1: Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants.
Sentence2: Glucose, a type of sugar, is the body's fuel.

Output: glucose


Input:
Sentence1: Bacteria are microorganisms that exist everywhere.
Sentence2: microorganisms may spread directly from one person to another.

Output: microorganisms


Input:
Sentence1: Lions live in social groups called prides.
Sentence2: Richard's shield has a pride on it.

Output: prides


Input:
Sentence1: Mammals are warm blooded animals.
Sentence2: Mammals require warm body temperature for survival.

Output: Mammals


Input:
Sentence1: Oxidation of iron minerals causes the redness of the rocks.
Sentence2: chemical weathering causes redness of the rocks containing iron.

Output: iron


Input:
Sentence1: Oxidation of iron minerals causes the redness of the rocks.
Sentence2: chemical weathering causes redness of the rocks containing iron.

Output: redness


Input:
Sentence1: Oxidation of iron minerals causes the redness of the rocks.
Sentence2: chemical weathering causes redness of the rocks containing iron.

Output: rocks


Input:
Sentence1: Shivering occurs when many muscles contract a little bit all at once.
Sentence2: Heat production is increased by shivering and non-shivering thermogenesis .

Output: Shivering


Input:
Sentence1: Most hormones are regulated by feedback mechanisms.
Sentence2: Hormones help the body manage stress.

Output: hormones


Input:
Sentence1: Different foods contain different nutrients.
Sentence2: having nutrients has a positive impact on an organism 's health.

Output: nutrients


Input:
Sentence1: Autotrophs are organisms that can make their own food.
Sentence2: An autotroph is a producer that can produce food for itself.

Output: Autotrophs


Input:
Sentence1: Thyroid hormones increase the rate of metabolism in cells throughout the body.
Sentence2: Thyroid hormones increase the rate of converting food to energy.

Output: Thyroid


Input:
Sentence1: Thyroid hormones increase the rate of metabolism in cells throughout the body.
Sentence2: Thyroid hormones increase the rate of converting food to energy.

Output: hormones


Input:
Sentence1: Thyroid hormones increase the rate of metabolism in cells throughout the body.
Sentence2: Thyroid hormones increase the rate of converting food to energy.

Output: increase


Input:
Sentence1: Thyroid hormones increase the rate of metabolism in cells throughout the body.
Sentence2: Thyroid hormones increase the rate of converting food to energy.

Output: of


Input:
Sentence1: Thyroid hormones increase the rate of metabolism in cells throughout the body.
Sentence2: Thyroid hormones increase the rate of converting food to energy.

Output: rate


Input:
Sentence1: Thyroid hormones increase the rate of metabolism in cells throughout the body.
Sentence2: Thyroid hormones increase the rate of converting food to energy.

Output: the


Input:
Sentence1: the surface of a beach is formed by mechanical weathering.
Sentence2: Sand is formed by mechanical weathering.

Output: formed


Input:
Sentence1: the surface of a beach is formed by mechanical weathering.
Sentence2: Sand is formed by mechanical weathering.

Output: mechanical


Input:
Sentence1: the surface of a beach is formed by mechanical weathering.
Sentence2: Sand is formed by mechanical weathering.

Output: weathering


Input:
Sentence1: plant reproduction requires pollination.
Sentence2: Honey bees provide honey and pollinate crops.

Output: pollination


Input:
Sentence1: Insects spread disease and destroy crops.
Sentence2: insects spread disease and destroy corn.

Output: Insects


Input:
Sentence1: Insects spread disease and destroy crops.
Sentence2: insects spread disease and destroy corn.

Output: destroy


Input:
Sentence1: Insects spread disease and destroy crops.
Sentence2: insects spread disease and destroy corn.

Output: disease


Input:
Sentence1: Insects spread disease and destroy crops.
Sentence2: insects spread disease and destroy corn.

Output: spread


Input:
Sentence1: plasma is formed by electrons separating from atoms in stars.
Sentence2: Interstellar space contains a plasma.

Output: plasma


Input:
Sentence1: Nuclear reactions convert mass to energy.
Sentence2: Stars convert mass to energy.

Output: convert


Input:
Sentence1: Nuclear reactions convert mass to energy.
Sentence2: Stars convert mass to energy.

Output: energy


Input:
Sentence1: Nuclear reactions convert mass to energy.
Sentence2: Stars convert mass to energy.

Output: mass


Input:
Sentence1: Amphibians have sense organs to smell and taste chemicals.
Sentence2: Frogs, toads and salamanders are amphibians.

Output: Amphibians


Input:
Sentence1: hunting requires seeing prey.
Sentence2: Vision is our ability to see.

Output: seeing


Input:
Sentence1: hitting an object causes the particles in that object to vibrate.
Sentence2: Hitting an object can cause that object to get hot.

Output: causes


Input:
Sentence1: hitting an object causes the particles in that object to vibrate.
Sentence2: Hitting an object can cause that object to get hot.

Output: hitting


Input:
Sentence1: hitting an object causes the particles in that object to vibrate.
Sentence2: Hitting an object can cause that object to get hot.

Output: object


Input:
Sentence1: riding a bike does not cause pollution.
Sentence2: Riding a bike is good exercise and also doesn't produce harmful gases.

Output: bike


Input:
Sentence1: riding a bike does not cause pollution.
Sentence2: Riding a bike is good exercise and also doesn't produce harmful gases.

Output: riding


Input:
Sentence1: landfills have a negative impact on the environment.
Sentence2: Trash has a negative impact on the environment.

Output: environment


Input:
Sentence1: landfills have a negative impact on the environment.
Sentence2: Trash has a negative impact on the environment.

Output: impact


Input:
Sentence1: landfills have a negative impact on the environment.
Sentence2: Trash has a negative impact on the environment.

Output: negative


Input:
Sentence1: Basically, mitosis is the process by which a cell divides.
Sentence2: Cancer cells perform mitosis more often than normal cells.

Output: mitosis


Input:
Sentence1: damming a river can cause a lake to form.
Sentence2: Other lakes formed throughout the region caused by stream blockages.

Output: form


Input:
Sentence1: damming a river can cause a lake to form.
Sentence2: Other lakes formed throughout the region caused by stream blockages.

Output: lake


Input:
Sentence1: Vision is our ability to see.
Sentence2: light is required for vision.

Output: Vision


Input:
Sentence1: Ethologists usually study how animals behave in their natural environment.
Sentence2: Environments reflect native habitats.

Output: environment


Input:
Sentence1: clouds are formed by water vapor rising into colder regions of the atmosphere and condensing.
Sentence2: water vapor sometimes falls as rain.

Output: vapor


Input:
Sentence1: clouds are formed by water vapor rising into colder regions of the atmosphere and condensing.
Sentence2: water vapor sometimes falls as rain.

Output: water


Input:
Sentence1: when a cooler object touches a warmer object , thermal conduction occurs.
Sentence2: When a cooler object touches a warmer object, thermal energy transfers.

Output: cooler


Input:
Sentence1: when a cooler object touches a warmer object , thermal conduction occurs.
Sentence2: When a cooler object touches a warmer object, thermal energy transfers.

Output: object


Input:
Sentence1: when a cooler object touches a warmer object , thermal conduction occurs.
Sentence2: When a cooler object touches a warmer object, thermal energy transfers.

Output: touches


Input:
Sentence1: when a cooler object touches a warmer object , thermal conduction occurs.
Sentence2: When a cooler object touches a warmer object, thermal energy transfers.

Output: warmer


Input:
Sentence1: Hurricanes can cause local flooding, flash flooding, or coastal flooding.
Sentence2: hurricanes can deposit soil in plains.

Output: Hurricanes


Input:
Sentence1: freezing causes a solid to form.
Sentence2: Water freezes at 32 degrees.

Output: freezing


Input:
Sentence1: sedimentary rocks are formed by deposition.
Sentence2: Sandstones are another type of sedimentary rocks used in buildings.

Output: rocks


Input:
Sentence1: sedimentary rocks are formed by deposition.
Sentence2: Sandstones are another type of sedimentary rocks used in buildings.

Output: sedimentary


Input:
Sentence1: Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes.
Sentence2: All plants are eukaryotes.

Output: eukaryotes


Input:
Sentence1: Animals adapt to cold temperatures.
Sentence2: Cold wet weather, even without freezing temperatures can cause hypothermia.

Output: temperatures


Input:
Sentence1: if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past.
Sentence2: The presence of a prehistoric shark tooth high in the mountains indicates that the land was once underwater.

Output: covered


Input:
Sentence1: if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past.
Sentence2: The presence of a prehistoric shark tooth high in the mountains indicates that the land was once underwater.

Output: water


Input:
Sentence1: Dates are provided for the recognized eras and periods of geologic time.
Sentence2: Macroevolution above the level of the species is evolution over eras and periods.

Output: eras


Input:
Sentence1: Dates are provided for the recognized eras and periods of geologic time.
Sentence2: Macroevolution above the level of the species is evolution over eras and periods.

Output: periods


Input:
Sentence1: Many nerve pathways link the cerebellum with motor neurons throughout the body.
Sentence2: Nerve pathways travel the brainstem.

Output: nerve


Input:
Sentence1: Many nerve pathways link the cerebellum with motor neurons throughout the body.
Sentence2: Nerve pathways travel the brainstem.

Output: pathways


Input:
Sentence1: And since infrared energy is heat, it warms the Earth.
Sentence2: Fire converts chemical energy into light and warmth for earth.

Output: Earth


Input:
Sentence1: And since infrared energy is heat, it warms the Earth.
Sentence2: Fire converts chemical energy into light and warmth for earth.

Output: warms


Input:
Sentence1: Strong winds increase the concentration of oxygen available to the fire.
Sentence2: avoid winds to keep oxygen from the fire.

Output: fire


Input:
Sentence1: Causes seasons by changing angle of sun.
Sentence2: Changing the angle of the sun will change the amount of daylight.

Output: angle


Input:
Sentence1: Causes seasons by changing angle of sun.
Sentence2: Changing the angle of the sun will change the amount of daylight.

Output: changing


Input:
Sentence1: Causes seasons by changing angle of sun.
Sentence2: Changing the angle of the sun will change the amount of daylight.

Output: sun


Input:
Sentence1: Mutations that lead to cancer usually occur in genes that control the cell cycle.
Sentence2: a mutation in cells usually occur in genes that control the cell cycle.

Output: cell


Input:
Sentence1: Mutations that lead to cancer usually occur in genes that control the cell cycle.
Sentence2: a mutation in cells usually occur in genes that control the cell cycle.

Output: control


Input:
Sentence1: Mutations that lead to cancer usually occur in genes that control the cell cycle.
Sentence2: a mutation in cells usually occur in genes that control the cell cycle.

Output: cycle


Input:
Sentence1: Mutations that lead to cancer usually occur in genes that control the cell cycle.
Sentence2: a mutation in cells usually occur in genes that control the cell cycle.

Output: genes


Input:
Sentence1: Mutations that lead to cancer usually occur in genes that control the cell cycle.
Sentence2: a mutation in cells usually occur in genes that control the cell cycle.

Output: occur


Input:
Sentence1: Mutations that lead to cancer usually occur in genes that control the cell cycle.
Sentence2: a mutation in cells usually occur in genes that control the cell cycle.

Output: usually


Input:
Sentence1: a balance is used for measuring mass of an object.
Sentence2: a balance is used for measuring grams of an object.

Output: balance


Input:
Sentence1: a balance is used for measuring mass of an object.
Sentence2: a balance is used for measuring grams of an object.

Output: measuring


Input:
Sentence1: a balance is used for measuring mass of an object.
Sentence2: a balance is used for measuring grams of an object.

Output: object


Input:
Sentence1: a balance is used for measuring mass of an object.
Sentence2: a balance is used for measuring grams of an object.

Output: used


Input:
Sentence1: hurricanes convert heat energy into mechanical energy.
Sentence2: Hurricanes use heat to move objects.

Output: hurricanes


Input:
Sentence1: Tides also cause currents.
Sentence2: the gravitational pull of the Moon on Earth 's oceans causes currents.

Output: currents


Input:
Sentence1: Graphite and diamond are polymorphs of carbon.
Sentence2: carbon polymorphs are used for making pencil lead.

Output: carbon


Input:
Sentence1: Graphite and diamond are polymorphs of carbon.
Sentence2: carbon polymorphs are used for making pencil lead.

Output: polymorphs


Input:
Sentence1: the mass of an object causes the gravitational force exerted by that object.
Sentence2: gravitational force accelerates objects.

Output: force


Input:
Sentence1: the mass of an object causes the gravitational force exerted by that object.
Sentence2: gravitational force accelerates objects.

Output: gravitational


Input:
Sentence1: Chromoplasts make and store pigments.
Sentence2: Pigments are permanent colors.

Output: pigments


Input:
Sentence1: a solution is formed by one substance being dissolved in another substance.
Sentence2: Another dissolved substance in ocean water is a type of rock called limestone .

Output: another


Input:
Sentence1: a solution is formed by one substance being dissolved in another substance.
Sentence2: Another dissolved substance in ocean water is a type of rock called limestone .

Output: substance


Input:
Sentence1: a barometer is used to measure air pressure.
Sentence2: a barometer gauges atmospheric pressure.

Output: barometer


Input:
Sentence1: Recycling is the reuse of material.
Sentence2: Reuse of materials has a positive impact on the environment.

Output: material


Input:
Sentence1: Recycling is the reuse of material.
Sentence2: Reuse of materials has a positive impact on the environment.

Output: reuse


Input:
Sentence1: cables are used for support by suspension bridges.
Sentence2: cables are used for support by the Golden Gate Bridge.

Output: cables


Input:
Sentence1: cables are used for support by suspension bridges.
Sentence2: cables are used for support by the Golden Gate Bridge.

Output: support


Input:
Sentence1: cables are used for support by suspension bridges.
Sentence2: cables are used for support by the Golden Gate Bridge.

Output: used


Input:
Sentence1: competition may cause animals to fight towards members of their own species.
Sentence2: Lions are members of the 'Panthera leo' species.

Output: species


Input:
Sentence1: a windmill converts wind energy into electricity primarily by using mechanical energy.
Sentence2: An electric field is created by voltage.

Output: electricity


Input:
Sentence1: Fractures heal when osteoclasts form new bone.
Sentence2: Osteoclasts are responsible for bone resorption.

Output: osteoclasts


Input:
Sentence1: Neurons transmit nerve impulses to other cells.
Sentence2: neurons transmit electrochemicals.

Output: Neurons


Input:
Sentence1: Natural gas is the cleanest of the fossil fuels.
Sentence2: Burning natural gas increases the carbon in the atmosphere.

Output: Natural


Input:
Sentence1: Natural gas is the cleanest of the fossil fuels.
Sentence2: Burning natural gas increases the carbon in the atmosphere.

Output: gas


Input:
Sentence1: Basalts are volcanic, micro-crystalline rock.
Sentence2: Breaking down basalt from larger into smaller pieces by weather is weathering.

Output: Basalts


Input:
Sentence1: Many warm-blooded animals control their body temperature by sweating or panting.
Sentence2: warm-blooded creatures control their body temperature by sweating or panting for survival.

Output: body


Input:
Sentence1: Many warm-blooded animals control their body temperature by sweating or panting.
Sentence2: warm-blooded creatures control their body temperature by sweating or panting for survival.

Output: control


Input:
Sentence1: Many warm-blooded animals control their body temperature by sweating or panting.
Sentence2: warm-blooded creatures control their body temperature by sweating or panting for survival.

Output: panting


Input:
Sentence1: Many warm-blooded animals control their body temperature by sweating or panting.
Sentence2: warm-blooded creatures control their body temperature by sweating or panting for survival.

Output: sweating


Input:
Sentence1: Many warm-blooded animals control their body temperature by sweating or panting.
Sentence2: warm-blooded creatures control their body temperature by sweating or panting for survival.

Output: temperature


Input:
Sentence1: Some viruses live in a dormant state inside the body.
Sentence2: When ferns are dormant it is as if they are hibernating.

Output: dormant


Input:
Sentence1: a greenhouse is used to protect plants from the cold.
Sentence2: Greenhouse plants grow healthier.

Output: greenhouse


Input:
Sentence1: preventing the transfer of heat from an organims 's body causes that organism to keep warm.
Sentence2: Organic Wool Booties Sweet hand-knit booties help keep little feet warm.

Output: warm


Input:
Sentence1: Animals can be classified into mammals, reptiles, birds.
Sentence2: Hair is a fiber that is not found in reptiles or birds.

Output: birds


Input:
Sentence1: Animals can be classified into mammals, reptiles, birds.
Sentence2: Hair is a fiber that is not found in reptiles or birds.

Output: reptiles


Input:
Sentence1: erosion of soil has a negative impact on the environment.
Sentence2: cattle can have a negative impact on the environment.

Output: environment


Input:
Sentence1: erosion of soil has a negative impact on the environment.
Sentence2: cattle can have a negative impact on the environment.

Output: impact


Input:
Sentence1: erosion of soil has a negative impact on the environment.
Sentence2: cattle can have a negative impact on the environment.

Output: negative


Input:
Sentence1: Animals adapt to cold temperatures.
Sentence2: And in winter it s very cold.

Output: cold


Input:
Sentence1: Prokaryotes are single-celled organisms that lack a nucleus.
Sentence2: Bacteria are single celled organisms that do not have a nucleus.

Output: nucleus


Input:
Sentence1: Prokaryotes are single-celled organisms that lack a nucleus.
Sentence2: Bacteria are single celled organisms that do not have a nucleus.

Output: organisms


Input:
Sentence1: Prokaryotes are single-celled organisms that lack a nucleus.
Sentence2: Bacteria are single celled organisms that do not have a nucleus.

Output: single-celled


Input:
Sentence1: when metal conducts heat , that metal expands.
Sentence2: When heat passes through metal, that metal expands.

Output: expands


Input:
Sentence1: when metal conducts heat , that metal expands.
Sentence2: When heat passes through metal, that metal expands.

Output: metal


Input:
Sentence1: Fertilization of gametes produces a diploid zygote.
Sentence2: Diploid zygote forms multicellular embryo in venter.

Output: diploid


Input:
Sentence1: Fertilization of gametes produces a diploid zygote.
Sentence2: Diploid zygote forms multicellular embryo in venter.

Output: zygote


Input:
Sentence1: threatening behavior causes a fight-or-flight response in animals.
Sentence2: Goats are four legged animals.

Output: animals


Input:
Sentence1: using cell phones can cause people to become distracted.
Sentence2: People who are distracted are hazards.

Output: distracted


Input:
Sentence1: using cell phones can cause people to become distracted.
Sentence2: People who are distracted are hazards.

Output: people


Input:
Sentence1: if a planet becomes too hot then that planet cannot sustain life.
Sentence2: If a planet is too close to a star, then it will be too hot for liquid water to exist.

Output: hot


Input:
Sentence1: an animal usually requires a warm body temperature for survival.
Sentence2: Survival means survival of the species.

Output: survival


Input:
Sentence1: Characteristics that are encoded in DNA are called genetic traits.
Sentence2: DNA is used to transmit characteristics from parents to offspring.

Output: Characteristics


Input:
Sentence1: Lipids Lipids are diverse hydrophobic molecules.
Sentence2: Steroid hormones are made of diverse hydrophobic molecules.

Output: diverse


Input:
Sentence1: Lipids Lipids are diverse hydrophobic molecules.
Sentence2: Steroid hormones are made of diverse hydrophobic molecules.

Output: hydrophobic


Input:
Sentence1: Vehicle emissions are a major cause of air pollution.
Sentence2: Traveling is a cause of air pollution.

Output: air


Input:
Sentence1: Vehicle emissions are a major cause of air pollution.
Sentence2: Traveling is a cause of air pollution.

Output: cause


Input:
Sentence1: Vehicle emissions are a major cause of air pollution.
Sentence2: Traveling is a cause of air pollution.

Output: pollution


Input:
Sentence1: Ribosomes are sites where proteins are made.
Sentence2: Endoplasmic reticulum are membranes attached to sites where proteins are made.

Output: are


Input:
Sentence1: Ribosomes are sites where proteins are made.
Sentence2: Endoplasmic reticulum are membranes attached to sites where proteins are made.

Output: made


Input:
Sentence1: Ribosomes are sites where proteins are made.
Sentence2: Endoplasmic reticulum are membranes attached to sites where proteins are made.

Output: proteins


Input:
Sentence1: Ribosomes are sites where proteins are made.
Sentence2: Endoplasmic reticulum are membranes attached to sites where proteins are made.

Output: sites


Input:
Sentence1: Ribosomes are sites where proteins are made.
Sentence2: Endoplasmic reticulum are membranes attached to sites where proteins are made.

Output: where


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: Many insects and animals feed at more than one trophic level.

Output: Many


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: Many insects and animals feed at more than one trophic level.

Output: feed


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: Many insects and animals feed at more than one trophic level.

Output: level


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: Many insects and animals feed at more than one trophic level.

Output: more


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: Many insects and animals feed at more than one trophic level.

Output: one


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: Many insects and animals feed at more than one trophic level.

Output: than


Input:
Sentence1: Many consumers feed at more than one trophic level.
Sentence2: Many insects and animals feed at more than one trophic level.

Output: trophic


Input:
Sentence1: radioactive dating is used to determine the age of fossils.
Sentence2: Extinct organisms represented only by fossils.

Output: fossils


Input:
Sentence1: Sea level is projected to rise due the thermal expansion of the oceans and the melting of glaciers.
Sentence2: Heat will ultimately cause the sea level to rise.

Output: Sea


Input:
Sentence1: Sea level is projected to rise due the thermal expansion of the oceans and the melting of glaciers.
Sentence2: Heat will ultimately cause the sea level to rise.

Output: level


Input:
Sentence1: Sea level is projected to rise due the thermal expansion of the oceans and the melting of glaciers.
Sentence2: Heat will ultimately cause the sea level to rise.

Output: rise


Input:
Sentence1: For example, butter is solid at room temperature, therefore it is mainly saturated.
Sentence2: saturated fat is solid at room temperature.

Output: saturated


Input:
Sentence1: a pulley is used for lifting objects.
Sentence2: Tower cranes use pulleys to lift loads.

Output: lifting


Input:
Sentence1: Like a mushroom, it lacks chlorophyll and is nonphotosynthetic.
Sentence2: Mushrooms are nonphotosynthetic and cannot make food to grow.

Output: mushroom


Input:
Sentence1: Like a mushroom, it lacks chlorophyll and is nonphotosynthetic.
Sentence2: Mushrooms are nonphotosynthetic and cannot make food to grow.

Output: nonphotosynthetic


Input:
Sentence1: Bile exits gallbladder by common bile duct.
Sentence2: the gallbladder reduces the acidity of food entering from the highly acidic stomach.

Output: gallbladder


Input:
Sentence1: Plants detect and respond to the daily cycle of light and darkness.
Sentence2: Plants detect and respond to diurnal cycles.

Output: Plants


Input:
Sentence1: Plants detect and respond to the daily cycle of light and darkness.
Sentence2: Plants detect and respond to diurnal cycles.

Output: detect


Input:
Sentence1: Plants detect and respond to the daily cycle of light and darkness.
Sentence2: Plants detect and respond to diurnal cycles.

Output: respond


Input:
Sentence1: Insects generally have two pairs of wings for flight.
Sentence2: Dragonflies are ancient insects.

Output: Insects


Input:
Sentence1: Insulin is a hormone that helps cells absorb sugar from the blood.
Sentence2: Insulin and glucagon are produced by the pancreas.

Output: Insulin


Input:
Sentence1: Winter is the coldest season.
Sentence2: some animals' fur grows thicker for staying warm in the coldest season.

Output: coldest


Input:
Sentence1: Winter is the coldest season.
Sentence2: some animals' fur grows thicker for staying warm in the coldest season.

Output: season


Input:
Sentence1: Echinoderms use pheromones to communicate with each other.
Sentence2: Echinoderms are represented by the starfish.

Output: Echinoderms


Input:
Sentence1: Fish have a circulatory system with a two-chambered heart.
Sentence2: trout have a circulatory system with a two-chambered heart.

Output: circulatory


Input:
Sentence1: Fish have a circulatory system with a two-chambered heart.
Sentence2: trout have a circulatory system with a two-chambered heart.

Output: have


Input:
Sentence1: Fish have a circulatory system with a two-chambered heart.
Sentence2: trout have a circulatory system with a two-chambered heart.

Output: heart


Input:
Sentence1: Fish have a circulatory system with a two-chambered heart.
Sentence2: trout have a circulatory system with a two-chambered heart.

Output: system


Input:
Sentence1: Fish have a circulatory system with a two-chambered heart.
Sentence2: trout have a circulatory system with a two-chambered heart.

Output: two-chambered


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters biomes in the form of sunlight or chemical compounds.

Output: Energy


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters biomes in the form of sunlight or chemical compounds.

Output: chemical


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters biomes in the form of sunlight or chemical compounds.

Output: compounds


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters biomes in the form of sunlight or chemical compounds.

Output: enters


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters biomes in the form of sunlight or chemical compounds.

Output: form


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters biomes in the form of sunlight or chemical compounds.

Output: in


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters biomes in the form of sunlight or chemical compounds.

Output: of


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters biomes in the form of sunlight or chemical compounds.

Output: or


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters biomes in the form of sunlight or chemical compounds.

Output: sunlight


Input:
Sentence1: Energy enters ecosystems in the form of sunlight or chemical compounds.
Sentence2: Energy enters biomes in the form of sunlight or chemical compounds.

Output: the


Input:
Sentence1: Placental mammals are therian mammals in which a placenta develops during pregnancy.
Sentence2: therian mammals give birth to live young, and house the embryo until it is complete.

Output: mammals


Input:
Sentence1: Placental mammals are therian mammals in which a placenta develops during pregnancy.
Sentence2: therian mammals give birth to live young, and house the embryo until it is complete.

Output: therian


Input:
Sentence1: if an object reflects light toward the eye then that object can be seen.
Sentence2: Light seems to travel in rays or beams.

Output: light


Input:
Sentence1: the fallopian tubes are used in reproduction.
Sentence2: Fallopian tubes are used in producing offspring.

Output: fallopian


Input:
Sentence1: the fallopian tubes are used in reproduction.
Sentence2: Fallopian tubes are used in producing offspring.

Output: tubes


Input:
Sentence1: Energy is a basic necessity of an ecosystem.
Sentence2: The basic necessity of an ecosystem enters in the form of sunlight.

Output: basic


Input:
Sentence1: Energy is a basic necessity of an ecosystem.
Sentence2: The basic necessity of an ecosystem enters in the form of sunlight.

Output: ecosystem


Input:
Sentence1: Energy is a basic necessity of an ecosystem.
Sentence2: The basic necessity of an ecosystem enters in the form of sunlight.

Output: necessity


Input:
Sentence1: Producers use energy and inorganic molecules to make food.
Sentence2: Plants make their own food from the sun.

Output: food


Input:
Sentence1: Producers use energy and inorganic molecules to make food.
Sentence2: Plants make their own food from the sun.

Output: make


Input:
Sentence1: irradiating food can be used to kill existing microorganisms in the food.
Sentence2: Using radioactive gamma ray sources, existing microorganisms in food can be killed.

Output: existing


Input:
Sentence1: irradiating food can be used to kill existing microorganisms in the food.
Sentence2: Using radioactive gamma ray sources, existing microorganisms in food can be killed.

Output: food


Input:
Sentence1: irradiating food can be used to kill existing microorganisms in the food.
Sentence2: Using radioactive gamma ray sources, existing microorganisms in food can be killed.

Output: kill


Input:
Sentence1: irradiating food can be used to kill existing microorganisms in the food.
Sentence2: Using radioactive gamma ray sources, existing microorganisms in food can be killed.

Output: microorganisms


Input:
Sentence1: Lakes are generally bigger and deeper than ponds.
Sentence2: Lakes are generally bigger and deeper than where frogs start out life.

Output: Lakes


Input:
Sentence1: Lakes are generally bigger and deeper than ponds.
Sentence2: Lakes are generally bigger and deeper than where frogs start out life.

Output: bigger


Input:
Sentence1: Lakes are generally bigger and deeper than ponds.
Sentence2: Lakes are generally bigger and deeper than where frogs start out life.

Output: deeper


Input:
Sentence1: Viruses are so small that they can be seen only with an electron microscope.
Sentence2: Viruses include the Tobacco Mosaic Virus.

Output: Viruses


Input:
Sentence1: Roundworms reproduce sexually.
Sentence2: Among sexually reproducing species, only females can have babies.

Output: reproduce


Input:
Sentence1: Plasma cells are activated B cells that secrete antibodies.
Sentence2: Antibodies kill bacteria.

Output: antibodies


Input:
Sentence1: an animal usually requires a warm body temperature for survival.
Sentence2: Cows are social animals.

Output: animal


Input:
Sentence1: if heat is conducted to an object then that object will become hot.
Sentence2: heated metals will become hot.

Output: become


Input:
Sentence1: if heat is conducted to an object then that object will become hot.
Sentence2: heated metals will become hot.

Output: hot


Input:
Sentence1: seasons cause change to the environment.
Sentence2: weather cause change to the environment.

Output: cause


Input:
Sentence1: seasons cause change to the environment.
Sentence2: weather cause change to the environment.

Output: change


Input:
Sentence1: seasons cause change to the environment.
Sentence2: weather cause change to the environment.

Output: environment


Input:
Sentence1: Intrusive igneous rocks account for sections of higher elevation.
Sentence2: vein deposits of gold and silver are formed in higher elevations.

Output: elevation


Input:
Sentence1: Intrusive igneous rocks account for sections of higher elevation.
Sentence2: vein deposits of gold and silver are formed in higher elevations.

Output: higher


Input:
Sentence1: predicting weather requires studying weater.
Sentence2: Meteorologists study weather conditions and prepare current and long range weather forecasts.

Output: studying


Input:
Sentence1: Balance is important in skiing and balance is important in life.
Sentence2: In order to ski, it is necessary to maintain body position.

Output: skiing


Input:
Sentence1: Playing is just one of many ways that mammals and other animals learn how to behave.
Sentence2: mammal learn to behave by having fun.

Output: behave


Input:
Sentence1: Playing is just one of many ways that mammals and other animals learn how to behave.
Sentence2: mammal learn to behave by having fun.

Output: learn


Input:
Sentence1: Playing is just one of many ways that mammals and other animals learn how to behave.
Sentence2: mammal learn to behave by having fun.

Output: mammals


Input:
Sentence1: Blood type is important for medical reasons.
Sentence2: Blood type is important in case of an acute stroke.

Output: Blood


Input:
Sentence1: Blood type is important for medical reasons.
Sentence2: Blood type is important in case of an acute stroke.

Output: important


Input:
Sentence1: Blood type is important for medical reasons.
Sentence2: Blood type is important in case of an acute stroke.

Output: type


Input:
Sentence1: Energy is passed up a food chain or web from lower to higher trophic levels.
Sentence2: resources from food are passed up a chain or web from lower to higher trophic levels.

Output: chain


Input:
Sentence1: Energy is passed up a food chain or web from lower to higher trophic levels.
Sentence2: resources from food are passed up a chain or web from lower to higher trophic levels.

Output: higher


Input:
Sentence1: Energy is passed up a food chain or web from lower to higher trophic levels.
Sentence2: resources from food are passed up a chain or web from lower to higher trophic levels.

Output: levels


Input:
Sentence1: Energy is passed up a food chain or web from lower to higher trophic levels.
Sentence2: resources from food are passed up a chain or web from lower to higher trophic levels.

Output: lower


Input:
Sentence1: Energy is passed up a food chain or web from lower to higher trophic levels.
Sentence2: resources from food are passed up a chain or web from lower to higher trophic levels.

Output: passed


Input:
Sentence1: Energy is passed up a food chain or web from lower to higher trophic levels.
Sentence2: resources from food are passed up a chain or web from lower to higher trophic levels.

Output: trophic


Input:
Sentence1: Energy is passed up a food chain or web from lower to higher trophic levels.
Sentence2: resources from food are passed up a chain or web from lower to higher trophic levels.

Output: up


Input:
Sentence1: Energy is passed up a food chain or web from lower to higher trophic levels.
Sentence2: resources from food are passed up a chain or web from lower to higher trophic levels.

Output: web


Input:
Sentence1: Silica sand is primarily mined from sandstone deposits.
Sentence2: erosion forms silica sand.

Output: Silica


Input:
Sentence1: Silica sand is primarily mined from sandstone deposits.
Sentence2: erosion forms silica sand.

Output: sand


Input:
Sentence1: high temperatures can cause an object to combust.
Sentence2: incineration causes an object to combust.

Output: combust


Input:
Sentence1: Biodiversity increases the productivity and stability of ecosystems.
Sentence2: Marine ecosystems also act as stabilizers of global systems especially our climate.

Output: ecosystems