Input:
Sentence1: Astronauts go out into space.
Sentence2: those who go out into space require preserved food for extended flights.

Output: go


Input:
Sentence1: Astronauts go out into space.
Sentence2: those who go out into space require preserved food for extended flights.

Output: into


Input:
Sentence1: Astronauts go out into space.
Sentence2: those who go out into space require preserved food for extended flights.

Output: out


Input:
Sentence1: Astronauts go out into space.
Sentence2: those who go out into space require preserved food for extended flights.

Output: space


Input:
Sentence1: Adult tunicates are barrel-shaped.
Sentence2: Tunicates differ strongly in appearance and are barrel shaped.

Output: barrel-shaped


Input:
Sentence1: Adult tunicates are barrel-shaped.
Sentence2: Tunicates differ strongly in appearance and are barrel shaped.

Output: tunicates


Input:
Sentence1: a tape measure is used to measure length.
Sentence2: a tape measure is used to measure all sizes.

Output: measure


Input:
Sentence1: a tape measure is used to measure length.
Sentence2: a tape measure is used to measure all sizes.

Output: tape


Input:
Sentence1: a tape measure is used to measure length.
Sentence2: a tape measure is used to measure all sizes.

Output: used


Input:
Sentence1: Migration Much of the life of a spiny lobster involves travel.
Sentence2: A life involving travel is a type of movement that changes population size.

Output: involves


Input:
Sentence1: Migration Much of the life of a spiny lobster involves travel.
Sentence2: A life involving travel is a type of movement that changes population size.

Output: life


Input:
Sentence1: Migration Much of the life of a spiny lobster involves travel.
Sentence2: A life involving travel is a type of movement that changes population size.

Output: travel


Input:
Sentence1: Bees are naturalized on every continent except Antarctica.
Sentence2: pollination occurs naturally on every continent except Antarctica.

Output: Antarctica


Input:
Sentence1: Bees are naturalized on every continent except Antarctica.
Sentence2: pollination occurs naturally on every continent except Antarctica.

Output: continent


Input:
Sentence1: Bees are naturalized on every continent except Antarctica.
Sentence2: pollination occurs naturally on every continent except Antarctica.

Output: every


Input:
Sentence1: Bees are naturalized on every continent except Antarctica.
Sentence2: pollination occurs naturally on every continent except Antarctica.

Output: except


Input:
Sentence1: Bees are naturalized on every continent except Antarctica.
Sentence2: pollination occurs naturally on every continent except Antarctica.

Output: naturalized


Input:
Sentence1: chemical weathering causes iron in rock to oxidize.
Sentence2: Iron oxidation in granite is very slow.

Output: iron


Input:
Sentence1: chemical weathering causes iron in rock to oxidize.
Sentence2: Iron oxidation in granite is very slow.

Output: oxidize


Input:
Sentence1: Flood waters commonly contain high levels of bacteria.
Sentence2: Heavy rains can cause high levels of bacteria.

Output: bacteria


Input:
Sentence1: Flood waters commonly contain high levels of bacteria.
Sentence2: Heavy rains can cause high levels of bacteria.

Output: high


Input:
Sentence1: Flood waters commonly contain high levels of bacteria.
Sentence2: Heavy rains can cause high levels of bacteria.

Output: levels


Input:
Sentence1: Warm temperatures have helped plant growth and sizing.
Sentence2: a greenhouse helps  plant growth.

Output: growth


Input:
Sentence1: Warm temperatures have helped plant growth and sizing.
Sentence2: a greenhouse helps  plant growth.

Output: plant


Input:
Sentence1: braking can cause skidding.
Sentence2: braking on bald tires can cause wet weather accidents.

Output: braking


Input:
Sentence1: braking can cause skidding.
Sentence2: braking on bald tires can cause wet weather accidents.

Output: cause


Input:
Sentence1: Trees are cut down in the forest and are then sent to a paper mill.
Sentence2: products from a paper mill can have a negative impact on an ecosystem.

Output: mill


Input:
Sentence1: Trees are cut down in the forest and are then sent to a paper mill.
Sentence2: products from a paper mill can have a negative impact on an ecosystem.

Output: paper


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

Output: Insect


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

Output: are


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

Output: important


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

Output: in


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

Output: insect


Input:
Sentence1: Bioterrorism is the intentional release or spread of agents of disease.
Sentence2: Bioterrorism is the intentional release pathogens.

Output: Bioterrorism


Input:
Sentence1: Bioterrorism is the intentional release or spread of agents of disease.
Sentence2: Bioterrorism is the intentional release pathogens.

Output: intentional


Input:
Sentence1: Bioterrorism is the intentional release or spread of agents of disease.
Sentence2: Bioterrorism is the intentional release pathogens.

Output: release


Input:
Sentence1: Jaws make cartilaginous fish excellent predators.
Sentence2: Sharks are excellent predators thanks to their jaws.

Output: Jaws


Input:
Sentence1: Jaws make cartilaginous fish excellent predators.
Sentence2: Sharks are excellent predators thanks to their jaws.

Output: excellent


Input:
Sentence1: Jaws make cartilaginous fish excellent predators.
Sentence2: Sharks are excellent predators thanks to their jaws.

Output: predators


Input:
Sentence1: Mollusks have a circulatory system with one or two hearts that pump blood.
Sentence2: Squids have a circulatory system.

Output: circulatory


Input:
Sentence1: Mollusks have a circulatory system with one or two hearts that pump blood.
Sentence2: Squids have a circulatory system.

Output: have


Input:
Sentence1: Mollusks have a circulatory system with one or two hearts that pump blood.
Sentence2: Squids have a circulatory system.

Output: system


Input:
Sentence1: Bird A bird is an animal with feathers.
Sentence2: Endothermic tetrapod vertebrates is an animal with feathers.

Output: animal


Input:
Sentence1: Bird A bird is an animal with feathers.
Sentence2: Endothermic tetrapod vertebrates is an animal with feathers.

Output: feathers


Input:
Sentence1: Bird A bird is an animal with feathers.
Sentence2: Endothermic tetrapod vertebrates is an animal with feathers.

Output: with


Input:
Sentence1: dehydrating food is used for preserving food.
Sentence2: Some food is dehydrated, while others are dried much like beef jerky.

Output: dehydrating


Input:
Sentence1: dehydrating food is used for preserving food.
Sentence2: Some food is dehydrated, while others are dried much like beef jerky.

Output: food


Input:
Sentence1: Echinoderms use pheromones to communicate with each other.
Sentence2: Echinoderms and molluscs use adhesives to grip the substrate during locomotion.

Output: use


Input:
Sentence1: Prokaryotes are single-celled organisms that lack a nucleus.
Sentence2: An organism is a living thing.

Output: organisms


Input:
Sentence1: Another group of echinoderms are the echinoids.
Sentence2: Echinoids have unique water vascular system was tube feet.

Output: echinoids


Input:
Sentence1: Hormones are produced and released by the endocrine system .
Sentence2: the endocrine system releases chemical messengers that control many body functions.

Output: endocrine


Input:
Sentence1: Hormones are produced and released by the endocrine system .
Sentence2: the endocrine system releases chemical messengers that control many body functions.

Output: system


Input:
Sentence1: Heterotrophs get organic molecules from other organisms.
Sentence2: food contains organic molecules.

Output: molecules


Input:
Sentence1: Heterotrophs get organic molecules from other organisms.
Sentence2: food contains organic molecules.

Output: organic


Input:
Sentence1: Spores may be dispersed by moving water, wind, or other organisms.
Sentence2: Most fungi disperse their spores by wind.

Output: Spores


Input:
Sentence1: Light seems to travel in rays or beams.
Sentence2: a laser is used for producing rays or beams.

Output: beams


Input:
Sentence1: Light seems to travel in rays or beams.
Sentence2: a laser is used for producing rays or beams.

Output: rays


Input:
Sentence1: Condensation is the reverse of vaporization , or change from liquid to gas.
Sentence2: The reverse of vaporization changes a gas into a liquid by reducing heat energy.

Output: reverse


Input:
Sentence1: Condensation is the reverse of vaporization , or change from liquid to gas.
Sentence2: The reverse of vaporization changes a gas into a liquid by reducing heat energy.

Output: vaporization


Input:
Sentence1: sedimentary rocks are formed by deposition.
Sentence2: sandstone is formed by deposition.

Output: by


Input:
Sentence1: sedimentary rocks are formed by deposition.
Sentence2: sandstone is formed by deposition.

Output: deposition


Input:
Sentence1: sedimentary rocks are formed by deposition.
Sentence2: sandstone is formed by deposition.

Output: formed


Input:
Sentence1: Mollusks are a major food source for other organisms, including humans.
Sentence2: Invertebrates are a major food source for other organisms, including humans.

Output: food


Input:
Sentence1: Mollusks are a major food source for other organisms, including humans.
Sentence2: Invertebrates are a major food source for other organisms, including humans.

Output: humans


Input:
Sentence1: Mollusks are a major food source for other organisms, including humans.
Sentence2: Invertebrates are a major food source for other organisms, including humans.

Output: including


Input:
Sentence1: Mollusks are a major food source for other organisms, including humans.
Sentence2: Invertebrates are a major food source for other organisms, including humans.

Output: major


Input:
Sentence1: Mollusks are a major food source for other organisms, including humans.
Sentence2: Invertebrates are a major food source for other organisms, including humans.

Output: organisms


Input:
Sentence1: Mollusks are a major food source for other organisms, including humans.
Sentence2: Invertebrates are a major food source for other organisms, including humans.

Output: other


Input:
Sentence1: Mollusks are a major food source for other organisms, including humans.
Sentence2: Invertebrates are a major food source for other organisms, including humans.

Output: source


Input:
Sentence1: Rivers and creeks leave flood plains.
Sentence2: creeks deposit soil in plains.

Output: creeks


Input:
Sentence1: Climate is generally described in terms of temperature and moisture.
Sentence2: temperature and moisture varies by alltitude.

Output: moisture


Input:
Sentence1: Climate is generally described in terms of temperature and moisture.
Sentence2: temperature and moisture varies by alltitude.

Output: temperature


Input:
Sentence1: a rubber band snapping causes the particles in the rubber band to vibrate.
Sentence2: a rubber band snapping causes heat.

Output: band


Input:
Sentence1: a rubber band snapping causes the particles in the rubber band to vibrate.
Sentence2: a rubber band snapping causes heat.

Output: causes


Input:
Sentence1: a rubber band snapping causes the particles in the rubber band to vibrate.
Sentence2: a rubber band snapping causes heat.

Output: rubber


Input:
Sentence1: a rubber band snapping causes the particles in the rubber band to vibrate.
Sentence2: a rubber band snapping causes heat.

Output: snapping


Input:
Sentence1: some animals' fur grows thicker for staying warm in the winter.
Sentence2: Temperatures in the winter can be brutal.

Output: winter


Input:
Sentence1: a balance is used for measuring mass of an object.
Sentence2: An object at absolute zero cannot be measured by a balance.

Output: balance


Input:
Sentence1: Hurricanes have five categories depending on wind speeds.
Sentence2: An anemometer can be used to determine hurricane category.

Output: Hurricanes


Input:
Sentence1: Hurricanes have five categories depending on wind speeds.
Sentence2: An anemometer can be used to determine hurricane category.

Output: categories


Input:
Sentence1: Flowers are a plant's reproductive organs.
Sentence2: a plant's reproductive organs form on the dominant sporophyte.

Output: organs


Input:
Sentence1: Flowers are a plant's reproductive organs.
Sentence2: a plant's reproductive organs form on the dominant sporophyte.

Output: plant's


Input:
Sentence1: Flowers are a plant's reproductive organs.
Sentence2: a plant's reproductive organs form on the dominant sporophyte.

Output: reproductive


Input:
Sentence1: Sponges are a source of food for many species of fish.
Sentence2: organisms attached to the ocean floor are a source of food for many species of fish.

Output: fish


Input:
Sentence1: Sponges are a source of food for many species of fish.
Sentence2: organisms attached to the ocean floor are a source of food for many species of fish.

Output: food


Input:
Sentence1: Sponges are a source of food for many species of fish.
Sentence2: organisms attached to the ocean floor are a source of food for many species of fish.

Output: many


Input:
Sentence1: Sponges are a source of food for many species of fish.
Sentence2: organisms attached to the ocean floor are a source of food for many species of fish.

Output: source


Input:
Sentence1: Sponges are a source of food for many species of fish.
Sentence2: organisms attached to the ocean floor are a source of food for many species of fish.

Output: species


Input:
Sentence1: Daisy leaves and white petals are used in salads.
Sentence2: Something a daisy has attracts pollinators.

Output: Daisy


Input:
Sentence1: seat belts are used for preventing injuries to passengers in cars.
Sentence2: Car accidents are a leading cause of death for children today.

Output: cars


Input:
Sentence1: Protozoa can be classified on the basis of how they move.
Sentence2: Cysts are protozoa that produce a special protective shell.

Output: Protozoa


Input:
Sentence1: Pollen consists of tiny grains that are the male gametes of plants.
Sentence2: bees use the male gametes of plants as food.

Output: gametes


Input:
Sentence1: Pollen consists of tiny grains that are the male gametes of plants.
Sentence2: bees use the male gametes of plants as food.

Output: male


Input:
Sentence1: Pollen consists of tiny grains that are the male gametes of plants.
Sentence2: bees use the male gametes of plants as food.

Output: plants


Input:
Sentence1: Producers are organisms that produce food for themselves and other organisms.
Sentence2: Most plants are producers.

Output: Producers


Input:
Sentence1: Reptile parents provide little if any care to their young.
Sentence2: Alligator and crocodile parents provide little care to their young.

Output: care


Input:
Sentence1: Reptile parents provide little if any care to their young.
Sentence2: Alligator and crocodile parents provide little care to their young.

Output: little


Input:
Sentence1: Reptile parents provide little if any care to their young.
Sentence2: Alligator and crocodile parents provide little care to their young.

Output: parents


Input:
Sentence1: Reptile parents provide little if any care to their young.
Sentence2: Alligator and crocodile parents provide little care to their young.

Output: young


Input:
Sentence1: All functions of life are carried out in cells.
Sentence2: Complex chemistry occurs in cells.

Output: cells


Input:
Sentence1: a circle graph can be used to display percents.
Sentence2: a circle graph can be used to display decimal fractions.

Output: circle


Input:
Sentence1: a circle graph can be used to display percents.
Sentence2: a circle graph can be used to display decimal fractions.

Output: display


Input:
Sentence1: a circle graph can be used to display percents.
Sentence2: a circle graph can be used to display decimal fractions.

Output: graph


Input:
Sentence1: a circle graph can be used to display percents.
Sentence2: a circle graph can be used to display decimal fractions.

Output: used


Input:
Sentence1: Water is made up of H2O molecules.
Sentence2: h2o is essential for all life on Earth.

Output: H2O


Input:
Sentence1: Mammals took advantage of the extinction of the dinosaurs.
Sentence2: Extinction is a natural part of evolution.

Output: extinction


Input:
Sentence1: if heat is conducted to an object then that object will become hot.
Sentence2: if heat is conducted to an object that object will emit more energy.

Output: conducted


Input:
Sentence1: if heat is conducted to an object then that object will become hot.
Sentence2: if heat is conducted to an object that object will emit more energy.

Output: heat


Input:
Sentence1: if heat is conducted to an object then that object will become hot.
Sentence2: if heat is conducted to an object that object will emit more energy.

Output: object


Input:
Sentence1: cutting down trees has a negative impact on an ecosystem.
Sentence2: cutting down trees has a negative impact on the health of humankind.

Output: cutting


Input:
Sentence1: cutting down trees has a negative impact on an ecosystem.
Sentence2: cutting down trees has a negative impact on the health of humankind.

Output: down


Input:
Sentence1: cutting down trees has a negative impact on an ecosystem.
Sentence2: cutting down trees has a negative impact on the health of humankind.

Output: has


Input:
Sentence1: cutting down trees has a negative impact on an ecosystem.
Sentence2: cutting down trees has a negative impact on the health of humankind.

Output: impact


Input:
Sentence1: cutting down trees has a negative impact on an ecosystem.
Sentence2: cutting down trees has a negative impact on the health of humankind.

Output: negative


Input:
Sentence1: cutting down trees has a negative impact on an ecosystem.
Sentence2: cutting down trees has a negative impact on the health of humankind.

Output: trees


Input:
Sentence1: Mammals generate heat mainly by keeping their metabolic rate high.
Sentence2: Birds have a high metabolic rate and a high energy requirement.

Output: metabolic


Input:
Sentence1: Mammals generate heat mainly by keeping their metabolic rate high.
Sentence2: Birds have a high metabolic rate and a high energy requirement.

Output: rate


Input:
Sentence1: Cancer is a disease that occurs when the cell cycle is no longer regulated.
Sentence2: Metastatic cancer is cancer that has spread.

Output: Cancer


Input:
Sentence1: eyes are used for seeing by animals by sensing light.
Sentence2: Mammals use eyes to sense light.

Output: eyes


Input:
Sentence1: eyes are used for seeing by animals by sensing light.
Sentence2: Mammals use eyes to sense light.

Output: light


Input:
Sentence1: eyes are used for seeing by animals by sensing light.
Sentence2: Mammals use eyes to sense light.

Output: sensing


Input:
Sentence1: Blood type is important for medical reasons.
Sentence2: Blood type is important to know prior to surgery.

Output: Blood


Input:
Sentence1: Blood type is important for medical reasons.
Sentence2: Blood type is important to know prior to surgery.

Output: important


Input:
Sentence1: Blood type is important for medical reasons.
Sentence2: Blood type is important to know prior to surgery.

Output: type


Input:
Sentence1: Shrub beds and ground covers require less water and provide more variety to the landscape.
Sentence2: Shrub beds need less water and will survive in a drought.

Output: Shrub


Input:
Sentence1: Shrub beds and ground covers require less water and provide more variety to the landscape.
Sentence2: Shrub beds need less water and will survive in a drought.

Output: beds


Input:
Sentence1: Shrub beds and ground covers require less water and provide more variety to the landscape.
Sentence2: Shrub beds need less water and will survive in a drought.

Output: less


Input:
Sentence1: Shrub beds and ground covers require less water and provide more variety to the landscape.
Sentence2: Shrub beds need less water and will survive in a drought.

Output: water


Input:
Sentence1: Stems of plants include trunks and branches.
Sentence2: Trees have woody trunks covered with bark.

Output: trunks


Input:
Sentence1: Roots improve soil structure.
Sentence2: looseness of soil improves soil structure.

Output: soil


Input:
Sentence1: Where most viruses are DNA, HIV is an RNA virus.
Sentence2: HIV virus contains RNA.

Output: RNA


Input:
Sentence1: Gene flow occurs when individuals move into or out of a population.
Sentence2: Internal migration describes moves within a country.

Output: move


Input:
Sentence1: Earthy sediment of fine particles of rock and soil suspended in and carried by water.
Sentence2: Oil is formed by fine particles pushing down on algae.

Output: fine


Input:
Sentence1: Earthy sediment of fine particles of rock and soil suspended in and carried by water.
Sentence2: Oil is formed by fine particles pushing down on algae.

Output: particles


Input:
Sentence1: Greenhouse gases act as the glass in a greenhouse.
Sentence2: glass keeps plants warm.

Output: glass


Input:
Sentence1: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side.
Sentence2: one side of the Earth receives less solar power from the Sun than the other side.

Output: Earth


Input:
Sentence1: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side.
Sentence2: one side of the Earth receives less solar power from the Sun than the other side.

Output: Sun


Input:
Sentence1: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side.
Sentence2: one side of the Earth receives less solar power from the Sun than the other side.

Output: from


Input:
Sentence1: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side.
Sentence2: one side of the Earth receives less solar power from the Sun than the other side.

Output: less


Input:
Sentence1: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side.
Sentence2: one side of the Earth receives less solar power from the Sun than the other side.

Output: of


Input:
Sentence1: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side.
Sentence2: one side of the Earth receives less solar power from the Sun than the other side.

Output: ones


Input:
Sentence1: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side.
Sentence2: one side of the Earth receives less solar power from the Sun than the other side.

Output: other


Input:
Sentence1: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side.
Sentence2: one side of the Earth receives less solar power from the Sun than the other side.

Output: receive


Input:
Sentence1: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side.
Sentence2: one side of the Earth receives less solar power from the Sun than the other side.

Output: side


Input:
Sentence1: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side.
Sentence2: one side of the Earth receives less solar power from the Sun than the other side.

Output: than


Input:
Sentence1: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side.
Sentence2: one side of the Earth receives less solar power from the Sun than the other side.

Output: the


Input:
Sentence1: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side.
Sentence2: one side of the Earth receives less solar power from the Sun than the other side.

Output: to


Input:
Sentence1: Experiments are often done in a lab.
Sentence2: some researchers do experiments.

Output: Experiments


Input:
Sentence1: threatening behavior causes a fight-or-flight response in animals.
Sentence2: threatening behavior causes a basic survival response in animals.

Output: animals


Input:
Sentence1: threatening behavior causes a fight-or-flight response in animals.
Sentence2: threatening behavior causes a basic survival response in animals.

Output: behavior


Input:
Sentence1: threatening behavior causes a fight-or-flight response in animals.
Sentence2: threatening behavior causes a basic survival response in animals.

Output: causes


Input:
Sentence1: threatening behavior causes a fight-or-flight response in animals.
Sentence2: threatening behavior causes a basic survival response in animals.

Output: response


Input:
Sentence1: threatening behavior causes a fight-or-flight response in animals.
Sentence2: threatening behavior causes a basic survival response in animals.

Output: threatening


Input:
Sentence1: Large brains require large skulls.
Sentence2: Birds have relatively large skulls and a high level of intelligence.

Output: skulls


Input:
Sentence1: Sweating reduces body heat.
Sentence2: Shivering produces heat in the body.

Output: body


Input:
Sentence1: Sweating reduces body heat.
Sentence2: Shivering produces heat in the body.

Output: heat


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

Output: burning


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

Output: electricity


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

Output: produce


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

Output: used


Input:
Sentence1: Olfaction is the sense of smell.
Sentence2: Most salamanders use olfaction to find a mate.

Output: Olfaction


Input:
Sentence1: tadpole changes into a frog.
Sentence2: Tadpoles become frogs after 4 months.

Output: frog


Input:
Sentence1: Hurricanes are categorized by the Saffir-Simpson Scale.
Sentence2: Something categorized by the Saffir-Simpson scale converts heat energy into mechanical energy.

Output: Saffir-Simpson


Input:
Sentence1: Hurricanes are categorized by the Saffir-Simpson Scale.
Sentence2: Something categorized by the Saffir-Simpson scale converts heat energy into mechanical energy.

Output: Scale


Input:
Sentence1: Hurricanes are categorized by the Saffir-Simpson Scale.
Sentence2: Something categorized by the Saffir-Simpson scale converts heat energy into mechanical energy.

Output: categorized


Input:
Sentence1: a warm front causes cloudy and rainy weather.
Sentence2: Warm air advancing on cold air causes cloudy and rainy weather.

Output: causes


Input:
Sentence1: a warm front causes cloudy and rainy weather.
Sentence2: Warm air advancing on cold air causes cloudy and rainy weather.

Output: cloudy


Input:
Sentence1: a warm front causes cloudy and rainy weather.
Sentence2: Warm air advancing on cold air causes cloudy and rainy weather.

Output: rainy


Input:
Sentence1: a warm front causes cloudy and rainy weather.
Sentence2: Warm air advancing on cold air causes cloudy and rainy weather.

Output: weather


Input:
Sentence1: Caecilians can be found in moist soil near rivers and streams in tropical regions.
Sentence2: caecilians can be found in warm regions.

Output: Caecilians


Input:
Sentence1: a mirror is used for reflecting light.
Sentence2: a mirror is used for reflecting images.

Output: mirror


Input:
Sentence1: a mirror is used for reflecting light.
Sentence2: a mirror is used for reflecting images.

Output: reflecting


Input:
Sentence1: a mirror is used for reflecting light.
Sentence2: a mirror is used for reflecting images.

Output: used


Input:
Sentence1: detailed observation of celestial objects requires a telescope.
Sentence2: Detailed observation of celestial objects requires the collecting of light and magnifying it.

Output: celestial


Input:
Sentence1: detailed observation of celestial objects requires a telescope.
Sentence2: Detailed observation of celestial objects requires the collecting of light and magnifying it.

Output: detailed


Input:
Sentence1: detailed observation of celestial objects requires a telescope.
Sentence2: Detailed observation of celestial objects requires the collecting of light and magnifying it.

Output: objects


Input:
Sentence1: detailed observation of celestial objects requires a telescope.
Sentence2: Detailed observation of celestial objects requires the collecting of light and magnifying it.

Output: observation


Input:
Sentence1: Bats and owls are nocturnal animals.
Sentence2: bats can communicate with sounds.

Output: Bats


Input:
Sentence1: Insects have chemical receptors on their antennae, legs or feet.
Sentence2: insects detect chemicals with their feet.

Output: feet


Input:
Sentence1: a laser is used for producing light.
Sentence2: Lasers are used to produce a beam that is coherent.

Output: used


Input:
Sentence1: Cultivation is easier if soil is loose.
Sentence2: soil with more oxygen is easier to cultivate.

Output: Cultivation


Input:
Sentence1: Humans have collected and grown mushrooms for food for thousands of years.
Sentence2: Humans have collected and grown fungi for food for thousands of years.

Output: Humans


Input:
Sentence1: Humans have collected and grown mushrooms for food for thousands of years.
Sentence2: Humans have collected and grown fungi for food for thousands of years.

Output: and


Input:
Sentence1: Humans have collected and grown mushrooms for food for thousands of years.
Sentence2: Humans have collected and grown fungi for food for thousands of years.

Output: collected


Input:
Sentence1: Humans have collected and grown mushrooms for food for thousands of years.
Sentence2: Humans have collected and grown fungi for food for thousands of years.

Output: food


Input:
Sentence1: Humans have collected and grown mushrooms for food for thousands of years.
Sentence2: Humans have collected and grown fungi for food for thousands of years.

Output: for


Input:
Sentence1: Humans have collected and grown mushrooms for food for thousands of years.
Sentence2: Humans have collected and grown fungi for food for thousands of years.

Output: grown


Input:
Sentence1: Humans have collected and grown mushrooms for food for thousands of years.
Sentence2: Humans have collected and grown fungi for food for thousands of years.

Output: have


Input:
Sentence1: Humans have collected and grown mushrooms for food for thousands of years.
Sentence2: Humans have collected and grown fungi for food for thousands of years.

Output: thousands


Input:
Sentence1: Humans have collected and grown mushrooms for food for thousands of years.
Sentence2: Humans have collected and grown fungi for food for thousands of years.

Output: years


Input:
Sentence1: the color of leaves on deciduous trees usually changes in the autumn season.
Sentence2: Deciduous trees are Oak, Elm, Ash, Maple, and Birch.

Output: deciduous


Input:
Sentence1: the color of leaves on deciduous trees usually changes in the autumn season.
Sentence2: Deciduous trees are Oak, Elm, Ash, Maple, and Birch.

Output: trees


Input:
Sentence1: Most hormones are regulated by feedback mechanisms.
Sentence2: enzymes control hormones.

Output: hormones


Input:
Sentence1: transpiration is when water vapor moves from plants into the atmosphere.
Sentence2: Transpiration is part of the photosynthesis process.

Output: transpiration


Input:
Sentence1: an electron microscope is used for seeing very small objects by making them appear bigger.
Sentence2: Microscopes that use electrons rather than light are called electron microscopes.

Output: electron


Input:
Sentence1: an electron microscope is used for seeing very small objects by making them appear bigger.
Sentence2: Microscopes that use electrons rather than light are called electron microscopes.

Output: microscope


Input:
Sentence1: Infections of the lungs can be caused by bacteria, viruses or fungi.
Sentence2: Pneumonia may be caused by viruses or injury.

Output: viruses


Input:
Sentence1: Birth may be followed by a period of parental care of the offspring.
Sentence2: Birth may be followed by parental nurturing.

Output: Birth


Input:
Sentence1: Birth may be followed by a period of parental care of the offspring.
Sentence2: Birth may be followed by parental nurturing.

Output: be


Input:
Sentence1: Birth may be followed by a period of parental care of the offspring.
Sentence2: Birth may be followed by parental nurturing.

Output: followed


Input:
Sentence1: Birth may be followed by a period of parental care of the offspring.
Sentence2: Birth may be followed by parental nurturing.

Output: may


Input:
Sentence1: a spider web is used to capture food by spiders.
Sentence2: tool extensions are used to capture food by spiders.

Output: capture


Input:
Sentence1: a spider web is used to capture food by spiders.
Sentence2: tool extensions are used to capture food by spiders.

Output: food


Input:
Sentence1: a spider web is used to capture food by spiders.
Sentence2: tool extensions are used to capture food by spiders.

Output: spiders


Input:
Sentence1: a spider web is used to capture food by spiders.
Sentence2: tool extensions are used to capture food by spiders.

Output: used


Input:
Sentence1: Earth 's tilt on its rotating axis causes seasons to change.
Sentence2: Earth 's tilt on its axis causes habitats to change.

Output: 's


Input:
Sentence1: Earth 's tilt on its rotating axis causes seasons to change.
Sentence2: Earth 's tilt on its axis causes habitats to change.

Output: Earth


Input:
Sentence1: Earth 's tilt on its rotating axis causes seasons to change.
Sentence2: Earth 's tilt on its axis causes habitats to change.

Output: axis


Input:
Sentence1: Earth 's tilt on its rotating axis causes seasons to change.
Sentence2: Earth 's tilt on its axis causes habitats to change.

Output: causes


Input:
Sentence1: Earth 's tilt on its rotating axis causes seasons to change.
Sentence2: Earth 's tilt on its axis causes habitats to change.

Output: its


Input:
Sentence1: Earth 's tilt on its rotating axis causes seasons to change.
Sentence2: Earth 's tilt on its axis causes habitats to change.

Output: on


Input:
Sentence1: Earth 's tilt on its rotating axis causes seasons to change.
Sentence2: Earth 's tilt on its axis causes habitats to change.

Output: tilt


Input:
Sentence1: Algae produce oxygen during the day through photosynthesis.
Sentence2: Plants photosynthesize during the day but not during the night.

Output: photosynthesis


Input:
Sentence1: Aggressive behavior is often first recognized as bullying behavior.
Sentence2: Competition can result in bullying.

Output: bullying


Input:
Sentence1: Erosion is a substantial contributor to deterioration of soil quality.
Sentence2: Wind can lead to a deterioration of soil quality.

Output: deterioration


Input:
Sentence1: Erosion is a substantial contributor to deterioration of soil quality.
Sentence2: Wind can lead to a deterioration of soil quality.

Output: quality


Input:
Sentence1: Erosion is a substantial contributor to deterioration of soil quality.
Sentence2: Wind can lead to a deterioration of soil quality.

Output: soil


Input:
Sentence1: Fresh foods cause hives more often than cooked foods.
Sentence2: keeping food cold can cause hives.

Output: cause


Input:
Sentence1: Fresh foods cause hives more often than cooked foods.
Sentence2: keeping food cold can cause hives.

Output: hives


Input:
Sentence1: a light bulb requires electrical energy to produce light.
Sentence2: Electricity or electrical energy, is produced at a power plant.

Output: electrical


Input:
Sentence1: a light bulb requires electrical energy to produce light.
Sentence2: Electricity or electrical energy, is produced at a power plant.

Output: energy


Input:
Sentence1: rest has a positive impact on a health.
Sentence2: Bottom line indicates at rest or sleep.

Output: rest


Input:
Sentence1: Genes that are located on the same chromosome are called linked genes.
Sentence2: Chromosomes contain the basic units of heriditary information.

Output: chromosome


Input:
Sentence1: Fish is available in the rivers and lakes of the district in large quantities.
Sentence2: Habitats where fish live in large quantities are usually larger than streams.

Output: Fish


Input:
Sentence1: Fish is available in the rivers and lakes of the district in large quantities.
Sentence2: Habitats where fish live in large quantities are usually larger than streams.

Output: large


Input:
Sentence1: Fish is available in the rivers and lakes of the district in large quantities.
Sentence2: Habitats where fish live in large quantities are usually larger than streams.

Output: quantities


Input:
Sentence1: Foods that are high in zinc are oysters.
Sentence2: oysters have a positive impact on the healing of wounds.

Output: oysters


Input:
Sentence1: using a gasoline engine requires burning gasoline.
Sentence2: Many engines burn fossil fuels.

Output: burning


Input:
Sentence1: using a gasoline engine requires burning gasoline.
Sentence2: Many engines burn fossil fuels.

Output: engine


Input:
Sentence1: Atmospheric pressure is measured by a barometer.
Sentence2: a barometer gauges atmospheric pressure.

Output: Atmospheric


Input:
Sentence1: Industry is a major cause of the destruction of habitat.
Sentence2: Industry causes animals to move to find shelter in another habitat.

Output: Industry


Input:
Sentence1: When seawater freezes, salt is expelled from the solid in a concentrated salt solution called brine.
Sentence2: Salt is expelled from seawater as it freezes at the freezing point.

Output: expelled


Input:
Sentence1: When seawater freezes, salt is expelled from the solid in a concentrated salt solution called brine.
Sentence2: Salt is expelled from seawater as it freezes at the freezing point.

Output: freezes


Input:
Sentence1: When seawater freezes, salt is expelled from the solid in a concentrated salt solution called brine.
Sentence2: Salt is expelled from seawater as it freezes at the freezing point.

Output: salt


Input:
Sentence1: When seawater freezes, salt is expelled from the solid in a concentrated salt solution called brine.
Sentence2: Salt is expelled from seawater as it freezes at the freezing point.

Output: seawater


Input:
Sentence1: Water is essential for all life on Earth.
Sentence2: dihydrogen monoxide is essential for all life on Earth.

Output: Earth


Input:
Sentence1: Water is essential for all life on Earth.
Sentence2: dihydrogen monoxide is essential for all life on Earth.

Output: all


Input:
Sentence1: Water is essential for all life on Earth.
Sentence2: dihydrogen monoxide is essential for all life on Earth.

Output: essential


Input:
Sentence1: Water is essential for all life on Earth.
Sentence2: dihydrogen monoxide is essential for all life on Earth.

Output: for


Input:
Sentence1: Water is essential for all life on Earth.
Sentence2: dihydrogen monoxide is essential for all life on Earth.

Output: life


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

Output: chemicals


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

Output: have


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

Output: organs


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

Output: sense


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

Output: smell


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

Output: taste


Input:
Sentence1: using a car causes pollution.
Sentence2: cars hurt the environment.

Output: car


Input:
Sentence1: Repel- To push away from each other.
Sentence2: Magnetism can cause objects to push each other away.

Output: away


Input:
Sentence1: Repel- To push away from each other.
Sentence2: Magnetism can cause objects to push each other away.

Output: push


Input:
Sentence1: Oxygen fatigue is a shortage of oxygen reaching the brain.
Sentence2: Plants can reduce fatigue during the daytime.

Output: fatigue


Input:
Sentence1: Viruses are usually considered to be nonliving.
Sentence2: acellular organisms need a living host.

Output: nonliving


Input:
Sentence1: Earthworm burrows help aerate soil, which is also good for plants.
Sentence2: Most species construct burrows.

Output: burrows


Input:
Sentence1: Algae Algae Green algae are the simplest of green plants.
Sentence2: the simplest green plants have varied life cycles.

Output: green


Input:
Sentence1: Algae Algae Green algae are the simplest of green plants.
Sentence2: the simplest green plants have varied life cycles.

Output: plants


Input:
Sentence1: Algae Algae Green algae are the simplest of green plants.
Sentence2: the simplest green plants have varied life cycles.

Output: simplest


Input:
Sentence1: Toasting bread creates carcinogens.
Sentence2: electrical energy can create carcinogens.

Output: carcinogens


Input:
Sentence1: All oaks are plants.
Sentence2: oaks are multicellular eukaryotes with cell walls made of cellulose.

Output: oaks


Input:
Sentence1: Cynodonts became more mammal-like as they continued to evolve.
Sentence2: Therapsids became more mammal-like as they continued to evolve.

Output: became


Input:
Sentence1: Cynodonts became more mammal-like as they continued to evolve.
Sentence2: Therapsids became more mammal-like as they continued to evolve.

Output: continued


Input:
Sentence1: Cynodonts became more mammal-like as they continued to evolve.
Sentence2: Therapsids became more mammal-like as they continued to evolve.

Output: evolve


Input:
Sentence1: Cynodonts became more mammal-like as they continued to evolve.
Sentence2: Therapsids became more mammal-like as they continued to evolve.

Output: mammal-like


Input:
Sentence1: Cynodonts became more mammal-like as they continued to evolve.
Sentence2: Therapsids became more mammal-like as they continued to evolve.

Output: more


Input:
Sentence1: Blood pH may become unbalanced if the rate of breathing is too fast or too slow.
Sentence2: blood pH may become unbalanced from aerobic activities.

Output: Blood


Input:
Sentence1: Blood pH may become unbalanced if the rate of breathing is too fast or too slow.
Sentence2: blood pH may become unbalanced from aerobic activities.

Output: become


Input:
Sentence1: Blood pH may become unbalanced if the rate of breathing is too fast or too slow.
Sentence2: blood pH may become unbalanced from aerobic activities.

Output: pH


Input:
Sentence1: Blood pH may become unbalanced if the rate of breathing is too fast or too slow.
Sentence2: blood pH may become unbalanced from aerobic activities.

Output: unbalanced


Input:
Sentence1: folding an object causes that object to change shape.
Sentence2: Origami causes an object to change shape.

Output: change


Input:
Sentence1: folding an object causes that object to change shape.
Sentence2: Origami causes an object to change shape.

Output: object


Input:
Sentence1: folding an object causes that object to change shape.
Sentence2: Origami causes an object to change shape.

Output: shape


Input:
Sentence1: Pollens originate from plants.
Sentence2: reproduction requires pollen.

Output: Pollens


Input:
Sentence1: Organisms grow up to resemble their parents.
Sentence2: Cell division leads to organisms growth.

Output: grow


Input:
Sentence1: Amphibians are also important predators.
Sentence2: An animal that kills and eats another animal is called a predator.

Output: predators


Input:
Sentence1: cross-pollination increases genetic diversity.
Sentence2: All pears are cross pollinated.

Output: cross-pollination


Input:
Sentence1: Fertilization occurs when a sperm and an egg fuse to form a diploid zygote.
Sentence2: An embryo created in the fertility process is human life.

Output: Fertilization


Input:
Sentence1: Bacteria may spread directly from one person to another.
Sentence2: actinomycetes may spread directly from one person to another.

Output: another


Input:
Sentence1: Bacteria may spread directly from one person to another.
Sentence2: actinomycetes may spread directly from one person to another.

Output: directly


Input:
Sentence1: Bacteria may spread directly from one person to another.
Sentence2: actinomycetes may spread directly from one person to another.

Output: one


Input:
Sentence1: Bacteria may spread directly from one person to another.
Sentence2: actinomycetes may spread directly from one person to another.

Output: person


Input:
Sentence1: Bacteria may spread directly from one person to another.
Sentence2: actinomycetes may spread directly from one person to another.

Output: spread


Input:
Sentence1: the gravitational pull of the Moon on Earth 's oceans causes the tides.
Sentence2: Rivers drain into the Pacific Ocean.

Output: oceans


Input:
Sentence1: nuclear reactions in stars causes stars to produce light.
Sentence2: Stars convert mass to energy.

Output: stars


Input:
Sentence1: Endocrine glands include the pituitary, thyroid, parathyroid, adrenal, pineal and thymus glands.
Sentence2: Some pituitary hormones can control the thyroid gland.

Output: thyroid


Input:
Sentence1: igneous rocks are formed from magma cooling.
Sentence2: The crystallized rocks are made by lava from the mantle.

Output: rocks


Input:
Sentence1: Oxygen is just one substance transported by the blood.
Sentence2: Hemoglobin transports oxygen in blood.

Output: blood


Input:
Sentence1: Viruses are not cells.
Sentence2: smallpox is not a cell.

Output: cells


Input:
Sentence1: Viruses are not cells.
Sentence2: smallpox is not a cell.

Output: not


Input:
Sentence1: Most beaches are of white coral sand.
Sentence2: Sand is formed by mechanical weathering.

Output: sand


Input:
Sentence1: Chemical bonds form when substances react with one another.
Sentence2: paper is formed by substances reacting with one another.

Output: another


Input:
Sentence1: Chemical bonds form when substances react with one another.
Sentence2: paper is formed by substances reacting with one another.

Output: one


Input:
Sentence1: Chemical bonds form when substances react with one another.
Sentence2: paper is formed by substances reacting with one another.

Output: react


Input:
Sentence1: Chemical bonds form when substances react with one another.
Sentence2: paper is formed by substances reacting with one another.

Output: substances


Input:
Sentence1: a circle graph can be used to display percents.
Sentence2: Pie Charts Pie charts are used predominantly to show percentages or parts of a whole.

Output: percents


Input:
Sentence1: Adult echinoderms have radial symmetry.
Sentence2: Adult spiny skinned animals found only in marine environments have radial symmetry.

Output: Adult


Input:
Sentence1: Adult echinoderms have radial symmetry.
Sentence2: Adult spiny skinned animals found only in marine environments have radial symmetry.

Output: have


Input:
Sentence1: Adult echinoderms have radial symmetry.
Sentence2: Adult spiny skinned animals found only in marine environments have radial symmetry.

Output: radial


Input:
Sentence1: Adult echinoderms have radial symmetry.
Sentence2: Adult spiny skinned animals found only in marine environments have radial symmetry.

Output: symmetry


Input:
Sentence1: Centrioles are organelles involved in cell division.
Sentence2: New cells are then created through cell division.

Output: division


Input:
Sentence1: energy is used for heating a building by a heating system.
Sentence2: Sometimes, in a cold climate it is necessary to use heat, but use only slow heat.

Output: heating


Input:
Sentence1: when a hemisphere is tilted towards the sun , that hemisphere receives more direct sunlight.
Sentence2: when a hemisphere is tilted towards the sun , that hemisphere has more burned foliage.

Output: hemisphere


Input:
Sentence1: when a hemisphere is tilted towards the sun , that hemisphere receives more direct sunlight.
Sentence2: when a hemisphere is tilted towards the sun , that hemisphere has more burned foliage.

Output: sun


Input:
Sentence1: when a hemisphere is tilted towards the sun , that hemisphere receives more direct sunlight.
Sentence2: when a hemisphere is tilted towards the sun , that hemisphere has more burned foliage.

Output: tilted


Input:
Sentence1: when a hemisphere is tilted towards the sun , that hemisphere receives more direct sunlight.
Sentence2: when a hemisphere is tilted towards the sun , that hemisphere has more burned foliage.

Output: towards


Input:
Sentence1: when a hemisphere is tilted towards the sun , that hemisphere receives more direct sunlight.
Sentence2: when a hemisphere is tilted towards the sun , that hemisphere has more burned foliage.

Output: when


Input:
Sentence1: If a star has a mass larger than 25 solar masses, it collapses into a black hole.
Sentence2: Black holes are formed by stars that have mass larger than 25 solar masses.

Output: 25


Input:
Sentence1: If a star has a mass larger than 25 solar masses, it collapses into a black hole.
Sentence2: Black holes are formed by stars that have mass larger than 25 solar masses.

Output: larger


Input:
Sentence1: If a star has a mass larger than 25 solar masses, it collapses into a black hole.
Sentence2: Black holes are formed by stars that have mass larger than 25 solar masses.

Output: mass


Input:
Sentence1: If a star has a mass larger than 25 solar masses, it collapses into a black hole.
Sentence2: Black holes are formed by stars that have mass larger than 25 solar masses.

Output: masses


Input:
Sentence1: If a star has a mass larger than 25 solar masses, it collapses into a black hole.
Sentence2: Black holes are formed by stars that have mass larger than 25 solar masses.

Output: solar


Input:
Sentence1: If a star has a mass larger than 25 solar masses, it collapses into a black hole.
Sentence2: Black holes are formed by stars that have mass larger than 25 solar masses.

Output: star


Input:
Sentence1: Pollution is the release of harmful substances into the environment.
Sentence2: treating water is used to remove pollution before drinking.

Output: Pollution


Input:
Sentence1: Antarctica's climate is that of a cold desert.
Sentence2: Bees are naturalized on every continent except the cold desert.

Output: cold


Input:
Sentence1: Antarctica's climate is that of a cold desert.
Sentence2: Bees are naturalized on every continent except the cold desert.

Output: desert


Input:
Sentence1: the gravitational pull of the Moon on Earth 's oceans causes the tides.
Sentence2: gravitational pull of the moon causes waves.

Output: gravitational


Input:
Sentence1: Secondary meristem is located within and around the vascular tissues.
Sentence2: Leaves lack Vascular Tissues.

Output: tissues


Input:
Sentence1: Secondary meristem is located within and around the vascular tissues.
Sentence2: Leaves lack Vascular Tissues.

Output: vascular


Input:
Sentence1: Structures and behaviors help animals move and survive in their habitats.
Sentence2: play can help an animal survive.

Output: animals


Input:
Sentence1: Structures and behaviors help animals move and survive in their habitats.
Sentence2: play can help an animal survive.

Output: survive


Input:
Sentence1: When a compound is unbalanced it becomes unbalanced and unstable.
Sentence2: Blood pH may become unstable if the rate of breathing is too fast or too slow.

Output: unstable


Input:
Sentence1: a light bulb requires electrical energy to produce light.
Sentence2: a light bulb requires a power plant to produce light.

Output: bulb


Input:
Sentence1: a light bulb requires electrical energy to produce light.
Sentence2: a light bulb requires a power plant to produce light.

Output: light


Input:
Sentence1: a light bulb requires electrical energy to produce light.
Sentence2: a light bulb requires a power plant to produce light.

Output: produce


Input:
Sentence1: a light bulb requires electrical energy to produce light.
Sentence2: a light bulb requires a power plant to produce light.

Output: requires


Input:
Sentence1: living underground can be used for hiding from predators.
Sentence2: Color and going underground helps conceal from predators.

Output: underground


Input:
Sentence1: triceps contracting causes a person 's elbow to straighten.
Sentence2: Muscles in the upper arm contracting causes a person 's elbow to straighten.

Output: causes


Input:
Sentence1: triceps contracting causes a person 's elbow to straighten.
Sentence2: Muscles in the upper arm contracting causes a person 's elbow to straighten.

Output: contracting


Input:
Sentence1: triceps contracting causes a person 's elbow to straighten.
Sentence2: Muscles in the upper arm contracting causes a person 's elbow to straighten.

Output: elbow


Input:
Sentence1: triceps contracting causes a person 's elbow to straighten.
Sentence2: Muscles in the upper arm contracting causes a person 's elbow to straighten.

Output: straighten


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: high mountains with well-rounded peaks can be formed by collision of plate tectonics.

Output: collision


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: high mountains with well-rounded peaks can be formed by collision of plate tectonics.

Output: formed


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: high mountains with well-rounded peaks can be formed by collision of plate tectonics.

Output: high


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: high mountains with well-rounded peaks can be formed by collision of plate tectonics.

Output: mountains


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: high mountains with well-rounded peaks can be formed by collision of plate tectonics.

Output: peaks


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: high mountains with well-rounded peaks can be formed by collision of plate tectonics.

Output: well-rounded


Input:
Sentence1: forming coal requires decaying vegetation.
Sentence2: Energy resources include coal and petroleum.

Output: coal


Input:
Sentence1: boiling is when liquids are heated above their boiling point.
Sentence2: Heating liquids above a certain temperature converts to gas.

Output: heated


Input:
Sentence1: gases released during the use of fossil fuels causes global warming.
Sentence2: Fossil fuels are coal, oil, and natural gas.

Output: fossil


Input:
Sentence1: gases released during the use of fossil fuels causes global warming.
Sentence2: Fossil fuels are coal, oil, and natural gas.

Output: fuels


Input:
Sentence1: when a gas in an open container evaporates , that gas spreads out into the air.
Sentence2: When dangerous gas from an open container evaporates, it can contaminate a workplace.

Output: an


Input:
Sentence1: when a gas in an open container evaporates , that gas spreads out into the air.
Sentence2: When dangerous gas from an open container evaporates, it can contaminate a workplace.

Output: container


Input:
Sentence1: when a gas in an open container evaporates , that gas spreads out into the air.
Sentence2: When dangerous gas from an open container evaporates, it can contaminate a workplace.

Output: evaporates


Input:
Sentence1: when a gas in an open container evaporates , that gas spreads out into the air.
Sentence2: When dangerous gas from an open container evaporates, it can contaminate a workplace.

Output: gas


Input:
Sentence1: when a gas in an open container evaporates , that gas spreads out into the air.
Sentence2: When dangerous gas from an open container evaporates, it can contaminate a workplace.

Output: open


Input:
Sentence1: fanning a fire increases the oxygen near the fire.
Sentence2: avoid winds to keep oxygen from the fire.

Output: oxygen


Input:
Sentence1: Plants are multicellular eukaryotes with cell walls made of cellulose.
Sentence2: Plants have nuclei.

Output: Plants


Input:
Sentence1: Mitosis is a simple, single cell division .
Sentence2: Mitosis often causes growth.

Output: Mitosis


Input:
Sentence1: microorganisms can cause infections.
Sentence2: Illness caused by microorganisms can be treated with antibiotics.

Output: microorganisms


Input:
Sentence1: Behaviors that improve fitness increase through natural selection.
Sentence2: behaviors that improve traits that relate to an animal's ability to survive and reproduce increases through natural selection.

Output: Behaviors


Input:
Sentence1: Behaviors that improve fitness increase through natural selection.
Sentence2: behaviors that improve traits that relate to an animal's ability to survive and reproduce increases through natural selection.

Output: improve


Input:
Sentence1: Behaviors that improve fitness increase through natural selection.
Sentence2: behaviors that improve traits that relate to an animal's ability to survive and reproduce increases through natural selection.

Output: increase


Input:
Sentence1: Behaviors that improve fitness increase through natural selection.
Sentence2: behaviors that improve traits that relate to an animal's ability to survive and reproduce increases through natural selection.

Output: natural


Input:
Sentence1: Behaviors that improve fitness increase through natural selection.
Sentence2: behaviors that improve traits that relate to an animal's ability to survive and reproduce increases through natural selection.

Output: selection


Input:
Sentence1: Behaviors that improve fitness increase through natural selection.
Sentence2: behaviors that improve traits that relate to an animal's ability to survive and reproduce increases through natural selection.

Output: through


Input:
Sentence1: After urination, dry the end of the penis and replace the foreskin.
Sentence2: liquid waste comes out the end of the penis.

Output: end


Input:
Sentence1: After urination, dry the end of the penis and replace the foreskin.
Sentence2: liquid waste comes out the end of the penis.

Output: penis


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

Output: webs


Input:
Sentence1: Evolution occurs in response to a change in the environment.
Sentence2: Biological evolution is a change in the genetic characteristics of a population over time.

Output: Evolution


Input:
Sentence1: Earth revolves around sun, moon around the earth.
Sentence2: The moon rotates around the earth.

Output: Earth


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: earthquakes can result in formation of high mountains with well-rounded peaks.

Output: formed


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: earthquakes can result in formation of high mountains with well-rounded peaks.

Output: high


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: earthquakes can result in formation of high mountains with well-rounded peaks.

Output: mountains


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: earthquakes can result in formation of high mountains with well-rounded peaks.

Output: peaks


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: earthquakes can result in formation of high mountains with well-rounded peaks.

Output: well-rounded


Input:
Sentence1: high mountains with well-rounded peaks can be formed by collision of crustal plates.
Sentence2: earthquakes can result in formation of high mountains with well-rounded peaks.

Output: with


Input:
Sentence1: Amphibians are also important predators.
Sentence2: Amphibians are important predators of insects, other invertebrates and vertebrates.

Output: important


Input:
Sentence1: Amphibians are also important predators.
Sentence2: Amphibians are important predators of insects, other invertebrates and vertebrates.

Output: predators


Input:
Sentence1: Good visibility is essential for safe driving.
Sentence2: bad weather impairs safe driving.

Output: driving


Input:
Sentence1: Good visibility is essential for safe driving.
Sentence2: bad weather impairs safe driving.

Output: safe


Input:
Sentence1: Plants that shed their leaves seasonally each year are called deciduous plants.
Sentence2: Grapevines shed their leaves seasonally each year.

Output: each


Input:
Sentence1: Plants that shed their leaves seasonally each year are called deciduous plants.
Sentence2: Grapevines shed their leaves seasonally each year.

Output: leaves


Input:
Sentence1: Plants that shed their leaves seasonally each year are called deciduous plants.
Sentence2: Grapevines shed their leaves seasonally each year.

Output: seasonally


Input:
Sentence1: Plants that shed their leaves seasonally each year are called deciduous plants.
Sentence2: Grapevines shed their leaves seasonally each year.

Output: shed


Input:
Sentence1: Plants that shed their leaves seasonally each year are called deciduous plants.
Sentence2: Grapevines shed their leaves seasonally each year.

Output: their


Input:
Sentence1: Plants that shed their leaves seasonally each year are called deciduous plants.
Sentence2: Grapevines shed their leaves seasonally each year.

Output: year


Input:
Sentence1: If climate changes and temperatures rise, there are a number of potential effects.
Sentence2: Climate change is a phase change.

Output: changes


Input:
Sentence1: If climate changes and temperatures rise, there are a number of potential effects.
Sentence2: Climate change is a phase change.

Output: climate


Input:
Sentence1: Puberty is the period during which humans become sexually mature.
Sentence2: humans experience a large increase in fat during puberty.

Output: Puberty


Input:
Sentence1: Puberty is the period during which humans become sexually mature.
Sentence2: humans experience a large increase in fat during puberty.

Output: during


Input:
Sentence1: Puberty is the period during which humans become sexually mature.
Sentence2: humans experience a large increase in fat during puberty.

Output: humans


Input:
Sentence1: a plant requires nutrients to grow.
Sentence2: Bamboos are vigorous, rugged plants.

Output: plant


Input:
Sentence1: Food consists of organic molecules that store energy in their chemical bonds.
Sentence2: Chemical Bonding A chemical bond is the sharing or transfer of electrons.

Output: bonds


Input:
Sentence1: Food consists of organic molecules that store energy in their chemical bonds.
Sentence2: Chemical Bonding A chemical bond is the sharing or transfer of electrons.

Output: chemical


Input:
Sentence1: Mollusks live in most terrestrial, freshwater, and marine habitats.
Sentence2: Interestingly, a squid is also a mollusk.

Output: Mollusks


Input:
Sentence1: Echinoderms lack respiratory and excretory systems.
Sentence2: Echinoderms are represented by the starfish.

Output: Echinoderms


Input:
Sentence1: If the moss was completely dried then it is dead.
Sentence2: dryness can prevent chemical weathering.

Output: dried


Input:
Sentence1: Each starfish arm is lined with tube feet.
Sentence2: Starfish are an echinoderm with a unique water vascular system.

Output: starfish


Input:
Sentence1: a plant requires nutrients to grow.
Sentence2: Major plant nutrients are phosphorus and nitrogen.

Output: nutrients


Input:
Sentence1: a measuring cup is used for measuring the volume of substances.
Sentence2: A measuring cup measures the amount of space a substance takes up.

Output: cup


Input:
Sentence1: a measuring cup is used for measuring the volume of substances.
Sentence2: A measuring cup measures the amount of space a substance takes up.

Output: measuring


Input:
Sentence1: Plants represent the first trophic level.
Sentence2: Energy is passed up a food chain from plants.

Output: Plants


Input:
Sentence1: infection can cause bodily tissues to swell.
Sentence2: HIV infection is a chronic lifelong infection.

Output: infection


Input:
Sentence1: When chemical bonds are broken by animals the energy is released in the form of work and heat.
Sentence2: Chemical bonds are converted to mechanical energy when a creature moves.

Output: bonds


Input:
Sentence1: When chemical bonds are broken by animals the energy is released in the form of work and heat.
Sentence2: Chemical bonds are converted to mechanical energy when a creature moves.

Output: chemical


Input:
Sentence1: Stimuli are detected by sensory nerve cells.
Sentence2: CN II , the optic nerve , is also a sensory nerve.

Output: sensory


Input:
Sentence1: zinc has a positive impact on the healing of wounds.
Sentence2: Foods that are high in zinc are oysters.

Output: zinc


Input:
Sentence1: HIV infects and destroys helper T cells.
Sentence2: HIV infects and destroys the brains behind immune response.

Output: HIV


Input:
Sentence1: HIV infects and destroys helper T cells.
Sentence2: HIV infects and destroys the brains behind immune response.

Output: destroys


Input:
Sentence1: HIV infects and destroys helper T cells.
Sentence2: HIV infects and destroys the brains behind immune response.

Output: infects


Input:
Sentence1: Mutations that lead to cancer usually occur in genes that control the cell cycle.
Sentence2: Leukemias are cancers of the blood.

Output: cancer


Input:
Sentence1: decomposition increases amount of organic matter in soil.
Sentence2: Fungi increase the amount of organic matter in soil.

Output: amount


Input:
Sentence1: decomposition increases amount of organic matter in soil.
Sentence2: Fungi increase the amount of organic matter in soil.

Output: increases


Input:
Sentence1: decomposition increases amount of organic matter in soil.
Sentence2: Fungi increase the amount of organic matter in soil.

Output: matter


Input:
Sentence1: decomposition increases amount of organic matter in soil.
Sentence2: Fungi increase the amount of organic matter in soil.

Output: organic


Input:
Sentence1: decomposition increases amount of organic matter in soil.
Sentence2: Fungi increase the amount of organic matter in soil.

Output: soil


Input:
Sentence1: Foods usually were covered with copious quantities of salt or saturated salt brine, and the salt was allowed to infuse into the tissue while dehydrating the product.
Sentence2: Salting food preserves it.

Output: Foods


Input:
Sentence1: Foods usually were covered with copious quantities of salt or saturated salt brine, and the salt was allowed to infuse into the tissue while dehydrating the product.
Sentence2: Salting food preserves it.

Output: salt


Input:
Sentence1: Migration is a type of movement that changes population size.
Sentence2: Movement is thought in motion.

Output: movement


Input:
Sentence1: Aging is associated with the death of cells.
Sentence2: Apoptosis is a natural part of aging.

Output: Aging


Input:
Sentence1: Once startled, the animal runs away often taking short leaps and emitting low cries.
Sentence2: Loud noises can cause animals to run away.

Output: away


Input:
Sentence1: Once startled, the animal runs away often taking short leaps and emitting low cries.
Sentence2: Loud noises can cause animals to run away.

Output: runs


Input:
Sentence1: Ribosomes are small organelles where proteins are made.
Sentence2: Many antibiotics affect small organelles where proteins are made.

Output: made


Input:
Sentence1: Ribosomes are small organelles where proteins are made.
Sentence2: Many antibiotics affect small organelles where proteins are made.

Output: organelles


Input:
Sentence1: Ribosomes are small organelles where proteins are made.
Sentence2: Many antibiotics affect small organelles where proteins are made.

Output: proteins


Input:
Sentence1: Ribosomes are small organelles where proteins are made.
Sentence2: Many antibiotics affect small organelles where proteins are made.

Output: small


Input:
Sentence1: Common micro-organisms include fungi and bacteria.
Sentence2: Common micro-organisms can cause people to become ill.

Output: Common


Input:
Sentence1: Common micro-organisms include fungi and bacteria.
Sentence2: Common micro-organisms can cause people to become ill.

Output: micro-organisms


Input:
Sentence1: Hydrogen bonds cause water to expand when it freezes.
Sentence2: Water makes strong hydrogen bonds.

Output: Hydrogen


Input:
Sentence1: uneven heating of the Earth 's surface cause wind.
Sentence2: Chinook winds are warm, dry winds.

Output: wind


Input:
Sentence1: Birds are a class of the chordates or vertebrate phylum.
Sentence2: birds have a backbone.

Output: Birds


Input:
Sentence1: sharpening an object causes that object to change shape.
Sentence2: sharpening a knife causes it to change shape.

Output: causes


Input:
Sentence1: sharpening an object causes that object to change shape.
Sentence2: sharpening a knife causes it to change shape.

Output: change


Input:
Sentence1: sharpening an object causes that object to change shape.
Sentence2: sharpening a knife causes it to change shape.

Output: shape


Input:
Sentence1: sharpening an object causes that object to change shape.
Sentence2: sharpening a knife causes it to change shape.

Output: sharpening


Input:
Sentence1: Fire needs oxygen in the air to keep burning.
Sentence2: Fanning a fire keeps it burning.

Output: burning


Input:
Sentence1: Fire needs oxygen in the air to keep burning.
Sentence2: Fanning a fire keeps it burning.

Output: keep


Input:
Sentence1: An object is an item in the real world.
Sentence2: if an item is black then that item absorbs all visible light.

Output: item


Input:
Sentence1: Seasons on the earth are due to the tilt of the earth's axis.
Sentence2: seasons happen because of orbital tilt.

Output: tilt


Input:
Sentence1: Transcription takes place in the nucleus.
Sentence2: All cells have a nucleus.

Output: nucleus


Input:
Sentence1: a rainbow is formed by refraction of light by separating light into all different colors.
Sentence2: Refraction is the bending of light.

Output: refraction


Input:
Sentence1: a flashlight requires a source of electricity to produce light.
Sentence2: Flashlights provide the safest emergency lighting source.

Output: flashlight


Input:
Sentence1: operating an automobile usually requires fossil fuels.
Sentence2: Operating an automobile usually requires energy pollution from gasoline.

Output: automobile


Input:
Sentence1: operating an automobile usually requires fossil fuels.
Sentence2: Operating an automobile usually requires energy pollution from gasoline.

Output: operating


Input:
Sentence1: operating an automobile usually requires fossil fuels.
Sentence2: Operating an automobile usually requires energy pollution from gasoline.

Output: requires


Input:
Sentence1: operating an automobile usually requires fossil fuels.
Sentence2: Operating an automobile usually requires energy pollution from gasoline.

Output: usually


Input:
Sentence1: Chemical digestion occurs mainly in the small intestine.
Sentence2: chemical absorption happens in the small intestine.

Output: intestine


Input:
Sentence1: Chemical digestion occurs mainly in the small intestine.
Sentence2: chemical absorption happens in the small intestine.

Output: small


Input:
Sentence1: blowing air into a whistle causes air to vibrate inside the whistle.
Sentence2: blowing air into a whistle creates sounds.

Output: air


Input:
Sentence1: blowing air into a whistle causes air to vibrate inside the whistle.
Sentence2: blowing air into a whistle creates sounds.

Output: blowing


Input:
Sentence1: blowing air into a whistle causes air to vibrate inside the whistle.
Sentence2: blowing air into a whistle creates sounds.

Output: whistle


Input:
Sentence1: Hormones control many cell activities, so they are very important for homeostasis.
Sentence2: Illness is an imbalance in homeostasis.

Output: homeostasis


Input:
Sentence1: DNA is an abbreviation for deoxyribonucleic acid.
Sentence2: Chromosomes are coiled structures made of deoxyribonucleic acid and proteins.

Output: acid


Input:
Sentence1: DNA is an abbreviation for deoxyribonucleic acid.
Sentence2: Chromosomes are coiled structures made of deoxyribonucleic acid and proteins.

Output: deoxyribonucleic


Input:
Sentence1: a mutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring.
Sentence2: cancer of a parent's cells can cause a new trait to appear in their offspring.

Output: appear


Input:
Sentence1: a mutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring.
Sentence2: cancer of a parent's cells can cause a new trait to appear in their offspring.

Output: cause


Input:
Sentence1: a mutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring.
Sentence2: cancer of a parent's cells can cause a new trait to appear in their offspring.

Output: cells


Input:
Sentence1: a mutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring.
Sentence2: cancer of a parent's cells can cause a new trait to appear in their offspring.

Output: new


Input:
Sentence1: a mutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring.
Sentence2: cancer of a parent's cells can cause a new trait to appear in their offspring.

Output: offspring


Input:
Sentence1: a mutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring.
Sentence2: cancer of a parent's cells can cause a new trait to appear in their offspring.

Output: parent


Input:
Sentence1: a mutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring.
Sentence2: cancer of a parent's cells can cause a new trait to appear in their offspring.

Output: trait


Input:
Sentence1: camouflage is used for protection by prey against predators.
Sentence2: Many animals camouflage or protect themselves by blending into their surroundings.

Output: camouflage


Input:
Sentence1: Reproduction is the process by which living things give rise to offspring.
Sentence2: Physiologically, sex is for the purpose of reproduction.

Output: Reproduction


Input:
Sentence1: Good examples are Bubble coral, Elegance coral, Frogspawn and other Euphyllia corals.
Sentence2: Organisms like frogspawns secrete an exoskeleton that builds up to become a reef.

Output: Frogspawn


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

Output: Insects


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

Output: destroy


Input:
Sentence1: Somebody's got to decide which way to go, and both directions have possibilities.
Sentence2: navigation requires knowing which way to go.

Output: go


Input:
Sentence1: Somebody's got to decide which way to go, and both directions have possibilities.
Sentence2: navigation requires knowing which way to go.

Output: way


Input:
Sentence1: Somebody's got to decide which way to go, and both directions have possibilities.
Sentence2: navigation requires knowing which way to go.

Output: which


Input:
Sentence1: an incandescent light bulb converts electricity into light by sending electricity through a filament.
Sentence2: a light bulb converts energy into light by sending energy through a filament.

Output: bulb


Input:
Sentence1: an incandescent light bulb converts electricity into light by sending electricity through a filament.
Sentence2: a light bulb converts energy into light by sending energy through a filament.

Output: converts


Input:
Sentence1: an incandescent light bulb converts electricity into light by sending electricity through a filament.
Sentence2: a light bulb converts energy into light by sending energy through a filament.

Output: electricity


Input:
Sentence1: an incandescent light bulb converts electricity into light by sending electricity through a filament.
Sentence2: a light bulb converts energy into light by sending energy through a filament.

Output: filament


Input:
Sentence1: an incandescent light bulb converts electricity into light by sending electricity through a filament.
Sentence2: a light bulb converts energy into light by sending energy through a filament.

Output: incandescent


Input:
Sentence1: an incandescent light bulb converts electricity into light by sending electricity through a filament.
Sentence2: a light bulb converts energy into light by sending energy through a filament.

Output: light


Input:
Sentence1: an incandescent light bulb converts electricity into light by sending electricity through a filament.
Sentence2: a light bulb converts energy into light by sending energy through a filament.

Output: sending


Input:
Sentence1: an incandescent light bulb converts electricity into light by sending electricity through a filament.
Sentence2: a light bulb converts energy into light by sending energy through a filament.

Output: through


Input:
Sentence1: Yeast reproduce asexually by budding.
Sentence2: small, single-celled plants reproduce asexually by budding.

Output: asexually


Input:
Sentence1: Yeast reproduce asexually by budding.
Sentence2: small, single-celled plants reproduce asexually by budding.

Output: budding


Input:
Sentence1: Yeast reproduce asexually by budding.
Sentence2: small, single-celled plants reproduce asexually by budding.

Output: reproduce


Input:
Sentence1: protein is used to repair cells by the human body.
Sentence2: Amino acids are used to repair cells by the human body.

Output: body


Input:
Sentence1: protein is used to repair cells by the human body.
Sentence2: Amino acids are used to repair cells by the human body.

Output: cells


Input:
Sentence1: protein is used to repair cells by the human body.
Sentence2: Amino acids are used to repair cells by the human body.

Output: human


Input:
Sentence1: protein is used to repair cells by the human body.
Sentence2: Amino acids are used to repair cells by the human body.

Output: repair


Input:
Sentence1: Zooplankton are tiny animals that feed on phytoplankton.
Sentence2: Zooplankton are tiny animals that feed on diatoms.

Output: Zooplankton


Input:
Sentence1: Zooplankton are tiny animals that feed on phytoplankton.
Sentence2: Zooplankton are tiny animals that feed on diatoms.

Output: animals


Input:
Sentence1: Zooplankton are tiny animals that feed on phytoplankton.
Sentence2: Zooplankton are tiny animals that feed on diatoms.

Output: feed


Input:
Sentence1: Zooplankton are tiny animals that feed on phytoplankton.
Sentence2: Zooplankton are tiny animals that feed on diatoms.

Output: on


Input:
Sentence1: Zooplankton are tiny animals that feed on phytoplankton.
Sentence2: Zooplankton are tiny animals that feed on diatoms.

Output: tiny


Input:
Sentence1: Earth is a planet in our solar system.
Sentence2: unequal heating of a planet's surface by the sun causes global wind patterns.

Output: planet


Input:
Sentence1: Molecules of tRNA bring amino acids to the ribosome in the correct sequence.
Sentence2: Proteins are manufactured at the ribosomes.

Output: ribosome


Input:
Sentence1: living underground can be used for hiding from predators.
Sentence2: The color of the egg helps to hide it from predators.

Output: hiding


Input:
Sentence1: living underground can be used for hiding from predators.
Sentence2: The color of the egg helps to hide it from predators.

Output: predators


Input:
Sentence1: Each trophic level has less biomass and a loss of energy content.
Sentence2: energy decreases as it goes up levels.

Output: energy


Input:
Sentence1: some animals' fur grows thicker for staying warm in the winter.
Sentence2: mammals use fur to stay warm.

Output: warm


Input:
Sentence1: Water and the Nile River are important to Egypt.
Sentence2: Erosion causes the Nile to become deeper and wider.

Output: Nile


Input:
Sentence1: Decomposers decay dead organisms or their wastes.
Sentence2: Fossil fuels are a product of decay.

Output: decay


Input:
Sentence1: cross-pollination increases genetic diversity.
Sentence2: cross-pollination increases biodiversity.

Output: cross-pollination


Input:
Sentence1: cross-pollination increases genetic diversity.
Sentence2: cross-pollination increases biodiversity.

Output: increases


Input:
Sentence1: All animals are heterotrophs.
Sentence2: All fish are animals.

Output: animals


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

Output: Energy


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

Output: ecosystems


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

Output: enters


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

Output: form


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

Output: in


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

Output: the


Input:
Sentence1: Gymnosperms are the plants that are known as evergreens.
Sentence2: Evergreens are vascular plants that produce seeds in cones.

Output: are


Input:
Sentence1: Gymnosperms are the plants that are known as evergreens.
Sentence2: Evergreens are vascular plants that produce seeds in cones.

Output: evergreens


Input:
Sentence1: Heterotrophs are living things that cannot make their own food.
Sentence2: All animals are heterotrophic.

Output: Heterotrophs


Input:
Sentence1: Mollusks in the diorama include snails and clams.
Sentence2: clams are mollusks.

Output: clams


Input:
Sentence1: Chloroplasts contain the green pigment chlorophyll.
Sentence2: chlorophyll are photosynthetic.

Output: chlorophyll


Input:
Sentence1: Sense of smell is the ability to detect odors.
Sentence2: Better ability to detect odors has a positive impact on an animal's survival.

Output: ability


Input:
Sentence1: Sense of smell is the ability to detect odors.
Sentence2: Better ability to detect odors has a positive impact on an animal's survival.

Output: detect


Input:
Sentence1: Sense of smell is the ability to detect odors.
Sentence2: Better ability to detect odors has a positive impact on an animal's survival.

Output: odors


Input:
Sentence1: a plant requires sunlight to grow.
Sentence2: Grass needs air and sunlight.

Output: sunlight


Input:
Sentence1: Light is the visible form of electromagnetic energy.
Sentence2: A mirror is used for reflecting visible energy.

Output: energy


Input:
Sentence1: Light is the visible form of electromagnetic energy.
Sentence2: A mirror is used for reflecting visible energy.

Output: visible


Input:
Sentence1: thirst is used to make an animal realize that it needs to replenish its bodily water by the body.
Sentence2: thirst is used to make chickens realize they need to replenish its bodily water.

Output: bodily


Input:
Sentence1: thirst is used to make an animal realize that it needs to replenish its bodily water by the body.
Sentence2: thirst is used to make chickens realize they need to replenish its bodily water.

Output: needs


Input:
Sentence1: thirst is used to make an animal realize that it needs to replenish its bodily water by the body.
Sentence2: thirst is used to make chickens realize they need to replenish its bodily water.

Output: realize


Input:
Sentence1: thirst is used to make an animal realize that it needs to replenish its bodily water by the body.
Sentence2: thirst is used to make chickens realize they need to replenish its bodily water.

Output: replenish


Input:
Sentence1: thirst is used to make an animal realize that it needs to replenish its bodily water by the body.
Sentence2: thirst is used to make chickens realize they need to replenish its bodily water.

Output: thirst


Input:
Sentence1: thirst is used to make an animal realize that it needs to replenish its bodily water by the body.
Sentence2: thirst is used to make chickens realize they need to replenish its bodily water.

Output: used


Input:
Sentence1: thirst is used to make an animal realize that it needs to replenish its bodily water by the body.
Sentence2: thirst is used to make chickens realize they need to replenish its bodily water.

Output: water


Input:
Sentence1: air pollution can cause the pH of soil to decrease.
Sentence2: incineration can cause the pH of soil to decrease.

Output: cause


Input:
Sentence1: air pollution can cause the pH of soil to decrease.
Sentence2: incineration can cause the pH of soil to decrease.

Output: decrease


Input:
Sentence1: air pollution can cause the pH of soil to decrease.
Sentence2: incineration can cause the pH of soil to decrease.

Output: pH


Input:
Sentence1: air pollution can cause the pH of soil to decrease.
Sentence2: incineration can cause the pH of soil to decrease.

Output: soil


Input:
Sentence1: a seismometer is used to measure the strength or magnitude of an earthquake.
Sentence2: Seismometer Calibration : Instructions on how to calibrate a homemade seismometer.

Output: seismometer


Input:
Sentence1: Alligators lay eggs and the females exhibit advanced parental care.
Sentence2: Alligators use nests.

Output: Alligators


Input:
Sentence1: breaking apart rocks can cause debris.
Sentence2: Erosion is the breaking apart and moving of rocks and soil.

Output: apart


Input:
Sentence1: Most soil nutrients are cations.
Sentence2: decomposition increases the amount of cations in the soil.

Output: cations


Input:
Sentence1: Ethologists usually study how animals behave in their natural environment.
Sentence2: Animals behave according to instinct.

Output: behave


Input:
Sentence1: Serious questions remain regarding what happens if endangered populations continue to decrease.
Sentence2: harming an animal species causes that animal's species to become endangered.

Output: endangered


Input:
Sentence1: Smog also contains particulates.
Sentence2: Smog has been linked with lung cancer.

Output: Smog


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: Fossils are the remains of prehistoric life.

Output: fossils


Input:
Sentence1: pathogens can cause disease.
Sentence2: Diseases can move through the air.

Output: disease


Input:
Sentence1: Active immunity results when an immune response to a pathogen produces memory cells.
Sentence2: Pathogens are germs that cause disease.

Output: pathogen


Input:
Sentence1: completing a circuit causes electricity to flow through that circuit.
Sentence2: An electrical current is a flow of electrons.

Output: electricity


Input:
Sentence1: sunlight and rain can cause a rainbow.
Sentence2: All deserts have very little rain.

Output: rain


Input:
Sentence1: erosion causes a river to become deeper and wider.
Sentence2: Clearing of land can lead to erosion of soil into the river.

Output: erosion


Input:
Sentence1: Enzymes are chemicals involved in digestion.
Sentence2: Enzymes involved in digestion occur mainly in the small intestine.

Output: Enzymes


Input:
Sentence1: Enzymes are chemicals involved in digestion.
Sentence2: Enzymes involved in digestion occur mainly in the small intestine.

Output: digestion


Input:
Sentence1: Enzymes are chemicals involved in digestion.
Sentence2: Enzymes involved in digestion occur mainly in the small intestine.

Output: involved


Input:
Sentence1: high pressure systems cause clear weather.
Sentence2: High barometric pressure indicates clear weather.

Output: clear


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

Output: Reproduction


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

Output: give


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

Output: offspring


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

Output: process


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

Output: rise


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

Output: which


Input:
Sentence1: measuring the hardness of minerals requires scratching those materials.
Sentence2: Classifying minerals requires scratching those materials.

Output: materials


Input:
Sentence1: measuring the hardness of minerals requires scratching those materials.
Sentence2: Classifying minerals requires scratching those materials.

Output: requires


Input:
Sentence1: measuring the hardness of minerals requires scratching those materials.
Sentence2: Classifying minerals requires scratching those materials.

Output: scratching


Input:
Sentence1: measuring the hardness of minerals requires scratching those materials.
Sentence2: Classifying minerals requires scratching those materials.

Output: those


Input:
Sentence1: Growth is faster during infancy than it is during puberty.
Sentence2: Growth is faster during the neonatal period than it is during puberty.

Output: Growth


Input:
Sentence1: Growth is faster during infancy than it is during puberty.
Sentence2: Growth is faster during the neonatal period than it is during puberty.

Output: during


Input:
Sentence1: Growth is faster during infancy than it is during puberty.
Sentence2: Growth is faster during the neonatal period than it is during puberty.

Output: faster


Input:
Sentence1: Growth is faster during infancy than it is during puberty.
Sentence2: Growth is faster during the neonatal period than it is during puberty.

Output: puberty


Input:
Sentence1: Growth is faster during infancy than it is during puberty.
Sentence2: Growth is faster during the neonatal period than it is during puberty.

Output: than


Input:
Sentence1: a cavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone.
Sentence2: Carbonic acid dissolves limestone by separating the calcium and carbonate and creating a liquid.

Output: carbonic


Input:
Sentence1: Zooplankton are tiny animals that feed on phytoplankton.
Sentence2: Microscopic animals are called zooplankton.

Output: animals


Input:
Sentence1: astronauts require preserved food for extended flights.
Sentence2: Freeze-drying Freeze drying is a method of preserving materials.

Output: preserved


Input:
Sentence1: Annelids have the amazing capacity to regrow segments that break off.
Sentence2: Earthworm Jim the greatest soil munchin' annelid fansite has been re-located.

Output: Annelids


Input:
Sentence1: DNA DNA DNA is a person's genetic fingerprint.
Sentence2: Molecules of a person's genetic fingerprint are encoded with instructions that tell cells what to do.

Output: fingerprint


Input:
Sentence1: DNA DNA DNA is a person's genetic fingerprint.
Sentence2: Molecules of a person's genetic fingerprint are encoded with instructions that tell cells what to do.

Output: genetic


Input:
Sentence1: DNA DNA DNA is a person's genetic fingerprint.
Sentence2: Molecules of a person's genetic fingerprint are encoded with instructions that tell cells what to do.

Output: person's


Input:
Sentence1: Organisms that live in marine biomes must be adapted to the salt in the water.
Sentence2: Organisms living in marine biomes must be adapted the chemical compound NaCl in the water.

Output: Organisms


Input:
Sentence1: Organisms that live in marine biomes must be adapted to the salt in the water.
Sentence2: Organisms living in marine biomes must be adapted the chemical compound NaCl in the water.

Output: adapted


Input:
Sentence1: Organisms that live in marine biomes must be adapted to the salt in the water.
Sentence2: Organisms living in marine biomes must be adapted the chemical compound NaCl in the water.

Output: biomes


Input:
Sentence1: Organisms that live in marine biomes must be adapted to the salt in the water.
Sentence2: Organisms living in marine biomes must be adapted the chemical compound NaCl in the water.

Output: marine


Input:
Sentence1: Organisms that live in marine biomes must be adapted to the salt in the water.
Sentence2: Organisms living in marine biomes must be adapted the chemical compound NaCl in the water.

Output: water


Input:
Sentence1: June Summer Triangle Three bright stars light up the summer sky.
Sentence2: Nuclear reactions in stars cause them to brighten up the summer sky.

Output: bright


Input:
Sentence1: June Summer Triangle Three bright stars light up the summer sky.
Sentence2: Nuclear reactions in stars cause them to brighten up the summer sky.

Output: sky


Input:
Sentence1: June Summer Triangle Three bright stars light up the summer sky.
Sentence2: Nuclear reactions in stars cause them to brighten up the summer sky.

Output: summer


Input:
Sentence1: Reproduction is the process by which organisms give rise to offspring.
Sentence2: Humans are complex organisms.

Output: organisms


Input:
Sentence1: Plants release oxygen during the day but not during the night.
Sentence2: Oxygen fatigue is a shortage of oxygen reaching the brain.

Output: oxygen


Input:
Sentence1: Pressure receptors are found mainly in the skin.
Sentence2: Pacinian corpuscles are found mainly in the skin.

Output: found


Input:
Sentence1: Pressure receptors are found mainly in the skin.
Sentence2: Pacinian corpuscles are found mainly in the skin.

Output: mainly


Input:
Sentence1: Pressure receptors are found mainly in the skin.
Sentence2: Pacinian corpuscles are found mainly in the skin.

Output: skin


Input:
Sentence1: Earth orbiting the Sun causes seasons to change.
Sentence2: Days and hours change seasonally.

Output: seasons


Input:
Sentence1: Balanced eating is a way of eating that promotes good health.
Sentence2: Balanced eating makes you thrive physically.

Output: Balanced


Input:
Sentence1: Balanced eating is a way of eating that promotes good health.
Sentence2: Balanced eating makes you thrive physically.

Output: eating


Input:
Sentence1: Female mammals have mammary glands.
Sentence2: Humans have mammary glands.

Output: glands


Input:
Sentence1: Female mammals have mammary glands.
Sentence2: Humans have mammary glands.

Output: mammary


Input:
Sentence1: Food is easier to chew because it is moistened by saliva from the salivary glands.
Sentence2: Food enters the mouth and is partially broken down by chewing and by enzymes in saliva.

Output: salivary


Input:
Sentence1: gills are used for breathing water by aquatic animals.
Sentence2: aquatic animals need gills to survive.

Output: gills


Input:
Sentence1: Dense materials generally have higher speeds of sound.
Sentence2: a dense material has higher sound.

Output: Dense


Input:
Sentence1: adding salt to a solid decreases the freezing point of that solid.
Sentence2: Water sources can be frozen solid.

Output: solid


Input:
Sentence1: Infancy has three stages.
Sentence2: The three stages after birth are the period of most rapid growth in life.

Output: stages


Input:
Sentence1: Infancy has three stages.
Sentence2: The three stages after birth are the period of most rapid growth in life.

Output: three


Input:
Sentence1: lightning can cause a forest fire.
Sentence2: Lightning can cause a natural cycle in forests.

Output: lightning


Input:
Sentence1: electric devices require electrical energy to function.
Sentence2: Lie detectors are electrical or mechanical devices.

Output: devices


Input:
Sentence1: electric devices require electrical energy to function.
Sentence2: Lie detectors are electrical or mechanical devices.

Output: electric


Input:
Sentence1: Fertilization occurs when sperm swim to an egg inside an archegonium.
Sentence2: Each archegonium is flask shaped.

Output: archegonium


Input:
Sentence1: the mass of a planet causes the pull of gravity on that planet.
Sentence2: Gravity is what causes things to have weight.

Output: gravity


Input:
Sentence1: Producers are organisms that produce food for themselves and other organisms.
Sentence2: Green plants are food producers.

Output: Producers


Input:
Sentence1: Aggression is behavior that is intended to cause harm or pain.
Sentence2: Aggression is a behavior that is meant to hurt others.

Output: Aggression


Input:
Sentence1: Aggression is behavior that is intended to cause harm or pain.
Sentence2: Aggression is a behavior that is meant to hurt others.

Output: behavior


Input:
Sentence1: the uterus is used in reproduction.
Sentence2: Through reproduction, the parents transmit genes to the offspring.

Output: reproduction