Input:
Sentence1: When plates collide, the earthquake is the result from the collision.
Sentence2: earthquakes can result in formation of high mountains with well-rounded peaks.

Output: earthquake


Input:
Sentence1: Scientists still know relatively little about Archaea.
Sentence2: Scientists still know relatively little about some prokaryotes.

Output: Scientists


Input:
Sentence1: Scientists still know relatively little about Archaea.
Sentence2: Scientists still know relatively little about some prokaryotes.

Output: about


Input:
Sentence1: Scientists still know relatively little about Archaea.
Sentence2: Scientists still know relatively little about some prokaryotes.

Output: know


Input:
Sentence1: Scientists still know relatively little about Archaea.
Sentence2: Scientists still know relatively little about some prokaryotes.

Output: little


Input:
Sentence1: Scientists still know relatively little about Archaea.
Sentence2: Scientists still know relatively little about some prokaryotes.

Output: relatively


Input:
Sentence1: Scientists still know relatively little about Archaea.
Sentence2: Scientists still know relatively little about some prokaryotes.

Output: still


Input:
Sentence1: Many corals secrete an exoskeleton that builds up to become a coral reef.
Sentence2: Coral Reefs Coral reefs are the jungles of the sea.

Output: coral


Input:
Sentence1: Many corals secrete an exoskeleton that builds up to become a coral reef.
Sentence2: Coral Reefs Coral reefs are the jungles of the sea.

Output: reef


Input:
Sentence1: An invertebrate is an animal that has no spine, or backbone.
Sentence2: cnidarians such as jellyfish and corals have no backbone.

Output: backbone


Input:
Sentence1: An invertebrate is an animal that has no spine, or backbone.
Sentence2: cnidarians such as jellyfish and corals have no backbone.

Output: no


Input:
Sentence1: Centrioles are organelles involved in cell division.
Sentence2: Basal bodies are involved in cell division.

Output: cell


Input:
Sentence1: Centrioles are organelles involved in cell division.
Sentence2: Basal bodies are involved in cell division.

Output: division


Input:
Sentence1: Centrioles are organelles involved in cell division.
Sentence2: Basal bodies are involved in cell division.

Output: involved


Input:
Sentence1: Centrioles are organelles involved in cell division.
Sentence2: Basal bodies are involved in cell division.

Output: organelles


Input:
Sentence1: if an object reflects light toward the eye then that object can be seen.
Sentence2: The light from the moon we see with our eyes comes from the sun.

Output: light


Input:
Sentence1: Bacteria and viruses are microbes.
Sentence2: Any surface that has not been sterilized is likely to be covered with live microbes.

Output: microbes


Input:
Sentence1: Sponges have specialized cells called collar cells.
Sentence2: Flagellum of collar cell cause current to pass over collar and food is collected.

Output: cells


Input:
Sentence1: Sponges have specialized cells called collar cells.
Sentence2: Flagellum of collar cell cause current to pass over collar and food is collected.

Output: collar


Input:
Sentence1: Planktonic plants are called phytoplankton.
Sentence2: animal plankton feeds on plant plankton.

Output: Planktonic


Input:
Sentence1: Planktonic plants are called phytoplankton.
Sentence2: animal plankton feeds on plant plankton.

Output: plants


Input:
Sentence1: Tobacco is most commonly smoked in cigarettes.
Sentence2: Lung cancer is most often caused by exposure to cigarettes.

Output: cigarettes


Input:
Sentence1: Viruses often infect bacteria.
Sentence2: Viruses can infect good and bad types.

Output: Viruses


Input:
Sentence1: a plant requires food for survival.
Sentence2: Food for the plant is made in the leaves.

Output: food


Input:
Sentence1: Brakes are also involved when the vehicle is on an incline.
Sentence2: friction is used to stop a vehicle on an incline.

Output: incline


Input:
Sentence1: Brakes are also involved when the vehicle is on an incline.
Sentence2: friction is used to stop a vehicle on an incline.

Output: on


Input:
Sentence1: Snail-shells and calcareous algae are often eaten for their calcium content.
Sentence2: hermit crabs use calcium for their homes.

Output: calcium


Input:
Sentence1: Loss of ozone has created an ozone hole over Antarctica.
Sentence2: Ozone Ozone is one form of oxygen.

Output: ozone


Input:
Sentence1: if an object reflects light toward the eye then that object can be seen.
Sentence2: white objects can be seen more.

Output: seen


Input:
Sentence1: Platypus females lay their eggs in a burrow.
Sentence2: echidnas lay eggs.

Output: eggs


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

Output: causes


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

Output: folding


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

Output: object


Input:
Sentence1: if an object is black then that object absorbs all visible light.
Sentence2: Light grains are quartz, Black grains are coal.

Output: black


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

Output: Wings


Input:
Sentence1: when a river floods , that river deposits soil in flood plains.
Sentence2: Hurricanes can cause local flooding, flash flooding, or coastal flooding.

Output: flood


Input:
Sentence1: when a river floods , that river deposits soil in flood plains.
Sentence2: Hurricanes can cause local flooding, flash flooding, or coastal flooding.

Output: floods


Input:
Sentence1: Most salamanders use their sense of smell to find a mate.
Sentence2: An odor, by definition, is a sensation, stimulation or perception of the sense of smell.

Output: sense


Input:
Sentence1: Most salamanders use their sense of smell to find a mate.
Sentence2: An odor, by definition, is a sensation, stimulation or perception of the sense of smell.

Output: smell


Input:
Sentence1: the Earth being tilted on its rotating axis causes seasons.
Sentence2: Weather and Seasons Weather and seasonal changes affect all plants and animals.

Output: seasons


Input:
Sentence1: Massage confuses the body's pain signals .
Sentence2: Some touch receptors can be confused by massage.

Output: Massage


Input:
Sentence1: Massage confuses the body's pain signals .
Sentence2: Some touch receptors can be confused by massage.

Output: confuses


Input:
Sentence1: All of the animal species on earth are consumers, depending upon producer organisms for their food.
Sentence2: All organisms are depending on multiple producers for their food.

Output: depending


Input:
Sentence1: Passive immunity lasts only as long as the antibodies survive in body fluids.
Sentence2: A pregnant woman will pass antibodies to the fetus.

Output: antibodies


Input:
Sentence1: optical tools are used for observing materials up close.
Sentence2: Microscopes are set up for observation of smaller organisms.

Output: observing


Input:
Sentence1: Sound waves are longitudinal waves.
Sentence2: telephones are used for communication by two people by transmitting waves.

Output: waves


Input:
Sentence1: a fire requires oxygen to burn.
Sentence2: Fires need to be in contact with the air to burn.

Output: burn


Input:
Sentence1: using a car causes pollution.
Sentence2: Harmful emissions from cars are largely responsible for the giant holes in the ozone layer.

Output: car


Input:
Sentence1: Platypus females lay their eggs in a burrow.
Sentence2: platypus females lay their eggs in soft soil.

Output: Platypus


Input:
Sentence1: Platypus females lay their eggs in a burrow.
Sentence2: platypus females lay their eggs in soft soil.

Output: eggs


Input:
Sentence1: Platypus females lay their eggs in a burrow.
Sentence2: platypus females lay their eggs in soft soil.

Output: females


Input:
Sentence1: Platypus females lay their eggs in a burrow.
Sentence2: platypus females lay their eggs in soft soil.

Output: lay


Input:
Sentence1: Platypus females lay their eggs in a burrow.
Sentence2: platypus females lay their eggs in soft soil.

Output: their


Input:
Sentence1: the ovaries are used in reproduction.
Sentence2: Humans are produced by two-parent reproduction.

Output: reproduction


Input:
Sentence1: Bagworms are parasitized by several kinds of parasitic wasps.
Sentence2: Wasps can live on the surface of their host.

Output: wasps


Input:
Sentence1: Viruses contain DNA but not much else.
Sentence2: DNA is encoded information.

Output: DNA


Input:
Sentence1: a flower 's purpose is to produce seeds.
Sentence2: Every job has meaning and purpose.

Output: purpose


Input:
Sentence1: if two balanced forces act on an object in opposite directions then that object will remain stationary.
Sentence2: Pushes and pulls can change the movement of an object.

Output: object


Input:
Sentence1: hearing is used for sensing sound by animals.
Sentence2: An ear improves hearing.

Output: hearing


Input:
Sentence1: ice wedging is when ice causes rocks to crack by expanding in openings.
Sentence2: Ice wedging is extremely effective in a moist but cold climate.

Output: ice


Input:
Sentence1: ice wedging is when ice causes rocks to crack by expanding in openings.
Sentence2: Ice wedging is extremely effective in a moist but cold climate.

Output: wedging


Input:
Sentence1: Limestone caves displaying stalactites.
Sentence2: Limestone caves are formed by depositions.

Output: Limestone


Input:
Sentence1: Limestone caves displaying stalactites.
Sentence2: Limestone caves are formed by depositions.

Output: caves


Input:
Sentence1: Puberty is the period during which humans become sexually mature.
Sentence2: Growth usually ceases when humans become sexually mature.

Output: become


Input:
Sentence1: Puberty is the period during which humans become sexually mature.
Sentence2: Growth usually ceases when humans become sexually mature.

Output: humans


Input:
Sentence1: Puberty is the period during which humans become sexually mature.
Sentence2: Growth usually ceases when humans become sexually mature.

Output: mature


Input:
Sentence1: Puberty is the period during which humans become sexually mature.
Sentence2: Growth usually ceases when humans become sexually mature.

Output: sexually


Input:
Sentence1: lack of moisture in the air causes low amounts of rainfall.
Sentence2: Lack of humidity causes low rainfall.

Output: lack


Input:
Sentence1: lack of moisture in the air causes low amounts of rainfall.
Sentence2: Lack of humidity causes low rainfall.

Output: low


Input:
Sentence1: lack of moisture in the air causes low amounts of rainfall.
Sentence2: Lack of humidity causes low rainfall.

Output: rainfall


Input:
Sentence1: weathering means breaking down rocks from larger whole into smaller pieces by weather.
Sentence2: weathering can be gravel breaking down from larger into smaller pieces.

Output: breaking


Input:
Sentence1: weathering means breaking down rocks from larger whole into smaller pieces by weather.
Sentence2: weathering can be gravel breaking down from larger into smaller pieces.

Output: down


Input:
Sentence1: weathering means breaking down rocks from larger whole into smaller pieces by weather.
Sentence2: weathering can be gravel breaking down from larger into smaller pieces.

Output: larger


Input:
Sentence1: weathering means breaking down rocks from larger whole into smaller pieces by weather.
Sentence2: weathering can be gravel breaking down from larger into smaller pieces.

Output: pieces


Input:
Sentence1: weathering means breaking down rocks from larger whole into smaller pieces by weather.
Sentence2: weathering can be gravel breaking down from larger into smaller pieces.

Output: smaller


Input:
Sentence1: weathering means breaking down rocks from larger whole into smaller pieces by weather.
Sentence2: weathering can be gravel breaking down from larger into smaller pieces.

Output: weathering


Input:
Sentence1: All oaks are trees.
Sentence2: if an oak falls then sunlight becomes available to the surrounding plants.

Output: oaks


Input:
Sentence1: Rocket engines are reaction engines.
Sentence2: Mechanical energy powers rockets.

Output: Rocket


Input:
Sentence1: Many plants respond to the days growing shorter in the fall by going dormant.
Sentence2: Autumn or Fall is already here.

Output: fall


Input:
Sentence1: Sound waves are vibrations in matter.
Sentence2: a firecracker converts chemical energy into vibrations in matter.

Output: matter


Input:
Sentence1: Sound waves are vibrations in matter.
Sentence2: a firecracker converts chemical energy into vibrations in matter.

Output: vibrations


Input:
Sentence1: Another readily available liquid manure is human urine.
Sentence2: readily available liquid manure is a product of the body.

Output: available


Input:
Sentence1: Another readily available liquid manure is human urine.
Sentence2: readily available liquid manure is a product of the body.

Output: liquid


Input:
Sentence1: Another readily available liquid manure is human urine.
Sentence2: readily available liquid manure is a product of the body.

Output: manure


Input:
Sentence1: Another readily available liquid manure is human urine.
Sentence2: readily available liquid manure is a product of the body.

Output: readily


Input:
Sentence1: Birds are endothermic tetrapod vertebrates.
Sentence2: mammals are endothermic.

Output: endothermic


Input:
Sentence1: a battery converts chemical energy into electrical energy.
Sentence2: Cameras use batteries.

Output: battery


Input:
Sentence1: Ribosomes are small organelles where proteins are made.
Sentence2: Bacteria lack ribosomes.

Output: Ribosomes


Input:
Sentence1: Fertilization As far as fertilization, timing is critical.
Sentence2: pollination timing is a critical step in the sexual reproduction of plants.

Output: critical


Input:
Sentence1: Fertilization As far as fertilization, timing is critical.
Sentence2: pollination timing is a critical step in the sexual reproduction of plants.

Output: is


Input:
Sentence1: Fertilization As far as fertilization, timing is critical.
Sentence2: pollination timing is a critical step in the sexual reproduction of plants.

Output: timing


Input:
Sentence1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil.
Sentence2: the looseness of soil has positive impact on baby plants.

Output: impact


Input:
Sentence1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil.
Sentence2: the looseness of soil has positive impact on baby plants.

Output: looseness


Input:
Sentence1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil.
Sentence2: the looseness of soil has positive impact on baby plants.

Output: positive


Input:
Sentence1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil.
Sentence2: the looseness of soil has positive impact on baby plants.

Output: soil


Input:
Sentence1: a firecracker converts chemical energy into sound.
Sentence2: Hearing is the act of perceiving sound.

Output: sound


Input:
Sentence1: Sweat wets the skin, and when it evaporates, it cools the body.
Sentence2: Sweat is released from sweat glands beneath the skin, and as it evaporates, the skin is cooled.

Output: Sweat


Input:
Sentence1: a meter stick is used to measure distance.
Sentence2: 100 cm is a meter.

Output: meter


Input:
Sentence1: a rubber band snapping causes the particles in the rubber band to vibrate.
Sentence2: After all, rubber bands tend to snap when stretched too thin.

Output: rubber


Input:
Sentence1: a rubber band snapping causes the particles in the rubber band to vibrate.
Sentence2: After all, rubber bands tend to snap when stretched too thin.

Output: snapping


Input:
Sentence1: a scale is used for measuring weight.
Sentence2: a scale measures pounds.

Output: measuring


Input:
Sentence1: a scale is used for measuring weight.
Sentence2: a scale measures pounds.

Output: scale


Input:
Sentence1: Running water is better able to dissolve oxygen and nutrients than standing water.
Sentence2: Oxygen and nutrients dissolve easily in rivers.

Output: dissolve


Input:
Sentence1: Running water is better able to dissolve oxygen and nutrients than standing water.
Sentence2: Oxygen and nutrients dissolve easily in rivers.

Output: nutrients


Input:
Sentence1: Running water is better able to dissolve oxygen and nutrients than standing water.
Sentence2: Oxygen and nutrients dissolve easily in rivers.

Output: oxygen


Input:
Sentence1: high pressure systems cause clear weather.
Sentence2: Anticyclones cause clear weather.

Output: clear


Input:
Sentence1: high pressure systems cause clear weather.
Sentence2: Anticyclones cause clear weather.

Output: weather


Input:
Sentence1: the color of leaves on deciduous trees usually changes in the autumn season.
Sentence2: the color of leaves on oak trees usually changes in the autumn season.

Output: autumn


Input:
Sentence1: the color of leaves on deciduous trees usually changes in the autumn season.
Sentence2: the color of leaves on oak trees usually changes in the autumn season.

Output: changes


Input:
Sentence1: the color of leaves on deciduous trees usually changes in the autumn season.
Sentence2: the color of leaves on oak trees usually changes in the autumn season.

Output: color


Input:
Sentence1: the color of leaves on deciduous trees usually changes in the autumn season.
Sentence2: the color of leaves on oak trees usually changes in the autumn season.

Output: leaves


Input:
Sentence1: the color of leaves on deciduous trees usually changes in the autumn season.
Sentence2: the color of leaves on oak trees usually changes in the autumn season.

Output: season


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

Output: acid


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

Output: causes


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

Output: rain


Input:
Sentence1: eating something that contains pollutants has a negative impact on an organism 's survival.
Sentence2: Naturally Organic foods are grown without the aid of unsafe and polluting chemicals.

Output: pollutants


Input:
Sentence1: transpiration is when water vapor moves from plants into the atmosphere.
Sentence2: Atmosphere is the blanket of air around the earth.

Output: atmosphere


Input:
Sentence1: a doorbell converts electrical energy into sound.
Sentence2: a doorbell converts electrical energy into what we hear.

Output: converts


Input:
Sentence1: a doorbell converts electrical energy into sound.
Sentence2: a doorbell converts electrical energy into what we hear.

Output: doorbell


Input:
Sentence1: a doorbell converts electrical energy into sound.
Sentence2: a doorbell converts electrical energy into what we hear.

Output: electrical


Input:
Sentence1: a doorbell converts electrical energy into sound.
Sentence2: a doorbell converts electrical energy into what we hear.

Output: energy


Input:
Sentence1: a doorbell converts electrical energy into sound.
Sentence2: a doorbell converts electrical energy into what we hear.

Output: into


Input:
Sentence1: If there is sun, there is sunlight, there is day.
Sentence2: Energy enters ecosystems from the sun.

Output: sun


Input:
Sentence1: Protozoa make humans sick when they become human parasites.
Sentence2: Parasites are not caused by bacteria.

Output: parasites


Input:
Sentence1: an earthquake causes the ground to shake.
Sentence2: when an earthquake causes the ground to shake, this shaking can damage buildings.

Output: causes


Input:
Sentence1: an earthquake causes the ground to shake.
Sentence2: when an earthquake causes the ground to shake, this shaking can damage buildings.

Output: ground


Input:
Sentence1: an earthquake causes the ground to shake.
Sentence2: when an earthquake causes the ground to shake, this shaking can damage buildings.

Output: shake


Input:
Sentence1: an earthquake causes the ground to shake.
Sentence2: when an earthquake causes the ground to shake, this shaking can damage buildings.

Output: the


Input:
Sentence1: an earthquake causes the ground to shake.
Sentence2: when an earthquake causes the ground to shake, this shaking can damage buildings.

Output: to


Input:
Sentence1: Systolic blood pressure is the force of blood on the blood vessel walls when the heart contracts.
Sentence2: Constriction raises systolic blood pressure.

Output: Systolic


Input:
Sentence1: Systolic blood pressure is the force of blood on the blood vessel walls when the heart contracts.
Sentence2: Constriction raises systolic blood pressure.

Output: blood


Input:
Sentence1: Systolic blood pressure is the force of blood on the blood vessel walls when the heart contracts.
Sentence2: Constriction raises systolic blood pressure.

Output: pressure


Input:
Sentence1: Collar cells have tiny hairs that trap the particles.
Sentence2: Particles A particle is simply a very tiny piece of matter.

Output: particles


Input:
Sentence1: Because food contains energy.
Sentence2: an organism requires food for growth.

Output: food


Input:
Sentence1: DNA contains genetic instructions for proteins, and RNA helps assemble the proteins.
Sentence2: A luminometer detects hybrids of the substance that helps assemble proteins.

Output: assemble


Input:
Sentence1: DNA contains genetic instructions for proteins, and RNA helps assemble the proteins.
Sentence2: A luminometer detects hybrids of the substance that helps assemble proteins.

Output: helps


Input:
Sentence1: DNA contains genetic instructions for proteins, and RNA helps assemble the proteins.
Sentence2: A luminometer detects hybrids of the substance that helps assemble proteins.

Output: proteins


Input:
Sentence1: Owls see very well at night.
Sentence2: Owls can hunt at night.

Output: Owls


Input:
Sentence1: Owls see very well at night.
Sentence2: Owls can hunt at night.

Output: night


Input:
Sentence1: Most sponges are hermaphroditic, meaning that a single organism has both eggs and sperm.
Sentence2: Adult sponges are a single organism that produce seed and eggs.

Output: eggs


Input:
Sentence1: Most sponges are hermaphroditic, meaning that a single organism has both eggs and sperm.
Sentence2: Adult sponges are a single organism that produce seed and eggs.

Output: organism


Input:
Sentence1: Most sponges are hermaphroditic, meaning that a single organism has both eggs and sperm.
Sentence2: Adult sponges are a single organism that produce seed and eggs.

Output: single


Input:
Sentence1: All plants are of bush type.
Sentence2: bushes use cellulose for their cell walls.

Output: bush


Input:
Sentence1: if soil is permeable then water easily flows through that soil.
Sentence2: If a soil has high permeability, water flows through the soil more freely and may cause chemicals to leach.

Output: flows


Input:
Sentence1: if soil is permeable then water easily flows through that soil.
Sentence2: If a soil has high permeability, water flows through the soil more freely and may cause chemicals to leach.

Output: soil


Input:
Sentence1: if soil is permeable then water easily flows through that soil.
Sentence2: If a soil has high permeability, water flows through the soil more freely and may cause chemicals to leach.

Output: that


Input:
Sentence1: if soil is permeable then water easily flows through that soil.
Sentence2: If a soil has high permeability, water flows through the soil more freely and may cause chemicals to leach.

Output: through


Input:
Sentence1: if soil is permeable then water easily flows through that soil.
Sentence2: If a soil has high permeability, water flows through the soil more freely and may cause chemicals to leach.

Output: water


Input:
Sentence1: Most bryophytes are small.
Sentence2: Most in the same group as mosses are small.

Output: small


Input:
Sentence1: Viruses infect and live inside the cells of living organisms.
Sentence2: Humans are complex organisms.

Output: organisms


Input:
Sentence1: Evaporation of sweat uses energy, and the energy comes from body heat.
Sentence2: Evaporation of sweat uses kinetic energy from the body.

Output: Evaporation


Input:
Sentence1: Evaporation of sweat uses energy, and the energy comes from body heat.
Sentence2: Evaporation of sweat uses kinetic energy from the body.

Output: body


Input:
Sentence1: Evaporation of sweat uses energy, and the energy comes from body heat.
Sentence2: Evaporation of sweat uses kinetic energy from the body.

Output: sweat


Input:
Sentence1: Evaporation of sweat uses energy, and the energy comes from body heat.
Sentence2: Evaporation of sweat uses kinetic energy from the body.

Output: uses


Input:
Sentence1: Caffeine is a central nervous system stimulant.
Sentence2: nicotine affects he central nervous system.

Output: central


Input:
Sentence1: Caffeine is a central nervous system stimulant.
Sentence2: nicotine affects he central nervous system.

Output: nervous


Input:
Sentence1: Caffeine is a central nervous system stimulant.
Sentence2: nicotine affects he central nervous system.

Output: system


Input:
Sentence1: Electron transport is the final stage of aerobic respiration.
Sentence2: Electron transport involves oxygen.

Output: Electron


Input:
Sentence1: Electron transport is the final stage of aerobic respiration.
Sentence2: Electron transport involves oxygen.

Output: transport


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

Output: Trout


Input:
Sentence1: Cancer is a disease that occurs when the cell cycle is no longer regulated.
Sentence2: Cancer can result in death.

Output: Cancer


Input:
Sentence1: Once a hurricane reaches land the source of warm moist air is extinguished and the hurricane dies.
Sentence2: Warm moist air can cause a hurricane to weaken.

Output: air


Input:
Sentence1: Once a hurricane reaches land the source of warm moist air is extinguished and the hurricane dies.
Sentence2: Warm moist air can cause a hurricane to weaken.

Output: moist


Input:
Sentence1: Once a hurricane reaches land the source of warm moist air is extinguished and the hurricane dies.
Sentence2: Warm moist air can cause a hurricane to weaken.

Output: warm


Input:
Sentence1: Small stalactites predominate on the cave roof.
Sentence2: cave roofs are formed by deposition.

Output: cave


Input:
Sentence1: Small stalactites predominate on the cave roof.
Sentence2: cave roofs are formed by deposition.

Output: roof


Input:
Sentence1: a light bulb requires electrical energy to produce light.
Sentence2: light bulbs use heat.

Output: bulb


Input:
Sentence1: A desert is defined by the scarcity of precipitation.
Sentence2: lakes are difficult to find in deserts.

Output: desert


Input:
Sentence1: Man's survival depends on water.
Sentence2: men need water to live.

Output: Man's


Input:
Sentence1: Elements Elements are composed of atoms.
Sentence2: Nonmetal atomic material is far fewer in number.

Output: atoms


Input:
Sentence1: The length of daylight varies depending on latitude and season.
Sentence2: Seasons change because of the latitude.

Output: latitude


Input:
Sentence1: Evolution occurs by a process called natural selection.
Sentence2: Natural selection only selects functionally advantageous systems.

Output: natural


Input:
Sentence1: Evolution occurs by a process called natural selection.
Sentence2: Natural selection only selects functionally advantageous systems.

Output: selection


Input:
Sentence1: Sight is the ability to sense light, and the eye is the organ that senses light.
Sentence2: Brown eyes are dominant to blue eyes.

Output: eye


Input:
Sentence1: Humidity is moisture in the air.
Sentence2: Lack of humidity causes low rainfall.

Output: Humidity


Input:
Sentence1: heating salt water causes the water to evaporate while the salt remains.
Sentence2: When water evaporates, salts in the water remain and become more concentrated.

Output: water


Input:
Sentence1: lack of moisture in the air causes low amounts of rainfall.
Sentence2: Rainfall contributes to, and evaporation removes, moisture.

Output: moisture


Input:
Sentence1: the number of rings in a tree trunk can be used to estimate the age of the tree.
Sentence2: Something that is exogenous can be used to estimate the age of a tree.

Output: age


Input:
Sentence1: the number of rings in a tree trunk can be used to estimate the age of the tree.
Sentence2: Something that is exogenous can be used to estimate the age of a tree.

Output: estimate


Input:
Sentence1: the number of rings in a tree trunk can be used to estimate the age of the tree.
Sentence2: Something that is exogenous can be used to estimate the age of a tree.

Output: tree


Input:
Sentence1: the number of rings in a tree trunk can be used to estimate the age of the tree.
Sentence2: Something that is exogenous can be used to estimate the age of a tree.

Output: used


Input:
Sentence1: Blood pressure is highest in arteries and lowest in veins.
Sentence2: Veins take blood to the heart.

Output: veins


Input:
Sentence1: Oral cancers can be deadly.
Sentence2: deadly genes can be inherited.

Output: deadly


Input:
Sentence1: Mammals generate heat mainly by keeping their metabolic rate high.
Sentence2: All humans are mammals.

Output: Mammals


Input:
Sentence1: Evolution occurs by a process called natural selection.
Sentence2: Evolution occurs by a process called differential reproduction.

Output: Evolution


Input:
Sentence1: Evolution occurs by a process called natural selection.
Sentence2: Evolution occurs by a process called differential reproduction.

Output: by


Input:
Sentence1: Evolution occurs by a process called natural selection.
Sentence2: Evolution occurs by a process called differential reproduction.

Output: called


Input:
Sentence1: Evolution occurs by a process called natural selection.
Sentence2: Evolution occurs by a process called differential reproduction.

Output: occurs


Input:
Sentence1: Evolution occurs by a process called natural selection.
Sentence2: Evolution occurs by a process called differential reproduction.

Output: process


Input:
Sentence1: intense heat has a negative impact on an organism.
Sentence2: the desert has a negative impact on an organism.

Output: impact


Input:
Sentence1: intense heat has a negative impact on an organism.
Sentence2: the desert has a negative impact on an organism.

Output: negative


Input:
Sentence1: Evaporation is when a liquid turns into a gas.
Sentence2: Sweat cools the body when it turns into a gas.

Output: gas


Input:
Sentence1: Evaporation is when a liquid turns into a gas.
Sentence2: Sweat cools the body when it turns into a gas.

Output: into


Input:
Sentence1: Evaporation is when a liquid turns into a gas.
Sentence2: Sweat cools the body when it turns into a gas.

Output: turns


Input:
Sentence1: Heat and warmth help other gift plants.
Sentence2: an egg requires heat to survive.

Output: Heat


Input:
Sentence1: the digestive system breaks food into nutrients for the body.
Sentence2: The pancreas is important for breaking food into nutrients for our bodies.

Output: body


Input:
Sentence1: the digestive system breaks food into nutrients for the body.
Sentence2: The pancreas is important for breaking food into nutrients for our bodies.

Output: breaks


Input:
Sentence1: the digestive system breaks food into nutrients for the body.
Sentence2: The pancreas is important for breaking food into nutrients for our bodies.

Output: food


Input:
Sentence1: the digestive system breaks food into nutrients for the body.
Sentence2: The pancreas is important for breaking food into nutrients for our bodies.

Output: nutrients


Input:
Sentence1: if an organism becomes too hot then that organism may die.
Sentence2: Dehydration in the hot sun is a constant danger.

Output: hot


Input:
Sentence1: heating a liquid can be used to identify that liquid 's boiling point.
Sentence2: Heating a liquid can be used to make water safe.

Output: heating


Input:
Sentence1: heating a liquid can be used to identify that liquid 's boiling point.
Sentence2: Heating a liquid can be used to make water safe.

Output: liquid


Input:
Sentence1: heating a liquid can be used to identify that liquid 's boiling point.
Sentence2: Heating a liquid can be used to make water safe.

Output: used


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

Output: impact


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

Output: negative


Input:
Sentence1: Hormones are chemical messengers that control many body functions.
Sentence2: And like other downers, it slows bodily functions, including breathing and heart rate.

Output: body


Input:
Sentence1: Hormones are chemical messengers that control many body functions.
Sentence2: And like other downers, it slows bodily functions, including breathing and heart rate.

Output: functions


Input:
Sentence1: Viruses are usually considered to be nonliving.
Sentence2: Viruses are usually acquired from contact with infected animals.

Output: Viruses


Input:
Sentence1: Viruses are usually considered to be nonliving.
Sentence2: Viruses are usually acquired from contact with infected animals.

Output: usually


Input:
Sentence1: Androgens are male sex hormones.
Sentence2: androgens are chemical messengers.

Output: Androgens


Input:
Sentence1: Ancestors of hagfish are thought to have been the earliest vertebrates.
Sentence2: Descendants of the early jawless fish are present today in the lampreys and hagfishes.

Output: hagfish


Input:
Sentence1: Hormones control many cell activities, so they are very important for homeostasis.
Sentence2: Many of the processes of homeostasis are mediated by hormones.

Output: Hormones


Input:
Sentence1: when a gas in an open container evaporates , that gas spreads out into the air.
Sentence2: Evaporation is when a liquid turns into a gas.

Output: evaporates


Input:
Sentence1: Electron transport is the final stage of aerobic respiration.
Sentence2: Aerobic respiration uses oxygen and releases carbon in the form of carbon dioxide.

Output: aerobic


Input:
Sentence1: Electron transport is the final stage of aerobic respiration.
Sentence2: Aerobic respiration uses oxygen and releases carbon in the form of carbon dioxide.

Output: respiration


Input:
Sentence1: Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants.
Sentence2: Ethanol qualifies as an alternative fuel.

Output: Ethanol


Input:
Sentence1: smell is used for finding food by some animals.
Sentence2: Every living being needs food.

Output: food


Input:
Sentence1: Mammals that are viviparous are called therian mammals.
Sentence2: Mouse-sized viviparous mammals evolved by Jurassic times.

Output: Mammals


Input:
Sentence1: Mammals that are viviparous are called therian mammals.
Sentence2: Mouse-sized viviparous mammals evolved by Jurassic times.

Output: mammals


Input:
Sentence1: Mammals that are viviparous are called therian mammals.
Sentence2: Mouse-sized viviparous mammals evolved by Jurassic times.

Output: viviparous


Input:
Sentence1: Fur seals grow a thick undercoat of fur, used as insulation.
Sentence2: Fur seals stay warm in winter.

Output: seals


Input:
Sentence1: Fertilization occurs when a sperm and an egg fuse.
Sentence2: fertilization occurs with the formation of the embryo.

Output: Fertilization


Input:
Sentence1: Fertilization occurs when a sperm and an egg fuse.
Sentence2: fertilization occurs with the formation of the embryo.

Output: occurs


Input:
Sentence1: Endocrine hormones travel throughout the body in the blood.
Sentence2: chemical messengers travel throughout the body in the blood.

Output: blood


Input:
Sentence1: Endocrine hormones travel throughout the body in the blood.
Sentence2: chemical messengers travel throughout the body in the blood.

Output: body


Input:
Sentence1: Endocrine hormones travel throughout the body in the blood.
Sentence2: chemical messengers travel throughout the body in the blood.

Output: in


Input:
Sentence1: Endocrine hormones travel throughout the body in the blood.
Sentence2: chemical messengers travel throughout the body in the blood.

Output: throughout


Input:
Sentence1: Endocrine hormones travel throughout the body in the blood.
Sentence2: chemical messengers travel throughout the body in the blood.

Output: travel


Input:
Sentence1: a cactus stem is used for storing water.
Sentence2: A cactus stem is used to reserve moisture.

Output: cactus


Input:
Sentence1: a cactus stem is used for storing water.
Sentence2: A cactus stem is used to reserve moisture.

Output: stem


Input:
Sentence1: Most mollusks have shells.
Sentence2: Clams, oysters and snails are familiar mollusks.

Output: mollusks


Input:
Sentence1: Cynodonts became more mammal-like as they continued to evolve.
Sentence2: Synapsids were a further evolution in a chain of mammal-like animals.

Output: evolve


Input:
Sentence1: Cynodonts became more mammal-like as they continued to evolve.
Sentence2: Synapsids were a further evolution in a chain of mammal-like animals.

Output: mammal-like


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

Output: years


Input:
Sentence1: a telescope is used for observing stars by astronomers.
Sentence2: Astronomers use telescopes to study black holes.

Output: astronomers


Input:
Sentence1: hiding can be used for avoiding predators.
Sentence2: rattlesnakes can hide to avoid eagles.

Output: avoiding


Input:
Sentence1: hiding can be used for avoiding predators.
Sentence2: rattlesnakes can hide to avoid eagles.

Output: can


Input:
Sentence1: hiding can be used for avoiding predators.
Sentence2: rattlesnakes can hide to avoid eagles.

Output: hiding


Input:
Sentence1: an automobile engine transforms chemical energy into mechanical energy.
Sentence2: Most automobile engines cause air pollution.

Output: automobile


Input:
Sentence1: Playing is one way mammals and other animals learn how to behave.
Sentence2: Second stage, learn how to behave assertively.

Output: behave


Input:
Sentence1: Frogs are the most durable of the amphibians.
Sentence2: Most frogs breathe with gills as larvae and with lungs as adults.

Output: Frogs


Input:
Sentence1: Most hormones are regulated by feedback mechanisms.
Sentence2: Hormones act as chemical messengers.

Output: hormones


Input:
Sentence1: vinegar can cause harm to the eyes.
Sentence2: Eyes: The eyes and their surrounding area are the most fragile part of the face.

Output: eyes


Input:
Sentence1: Flatworms belong to the phylum Platyhelminthes.
Sentence2: Flatworms belong to the free-living and parasitic forms.

Output: Flatworms


Input:
Sentence1: Flatworms belong to the phylum Platyhelminthes.
Sentence2: Flatworms belong to the free-living and parasitic forms.

Output: belong


Input:
Sentence1: braking can cause skidding.
Sentence2: Harsh braking increases the wear of the brakes and the tyres.

Output: braking


Input:
Sentence1: Flowers produce spores that develop into gametophytes.
Sentence2: ferns reproduce with spores.

Output: spores


Input:
Sentence1: a toaster converts electrical energy into heat energy for toasting.
Sentence2: a toaster converts electrical energy into increased temperature for toasting.

Output: converts


Input:
Sentence1: a toaster converts electrical energy into heat energy for toasting.
Sentence2: a toaster converts electrical energy into increased temperature for toasting.

Output: electrical


Input:
Sentence1: a toaster converts electrical energy into heat energy for toasting.
Sentence2: a toaster converts electrical energy into increased temperature for toasting.

Output: energy


Input:
Sentence1: a toaster converts electrical energy into heat energy for toasting.
Sentence2: a toaster converts electrical energy into increased temperature for toasting.

Output: toaster


Input:
Sentence1: a toaster converts electrical energy into heat energy for toasting.
Sentence2: a toaster converts electrical energy into increased temperature for toasting.

Output: toasting


Input:
Sentence1: Arteries generally carry oxygen-rich blood.
Sentence2: without oxygen, people can die.

Output: oxygen-rich


Input:
Sentence1: Any surface that has not been sterilized is likely to be covered with bacteria.
Sentence2: Any surface that has not been sterilized is likely to be covered with single cell microorganisms.

Output: covered


Input:
Sentence1: Any surface that has not been sterilized is likely to be covered with bacteria.
Sentence2: Any surface that has not been sterilized is likely to be covered with single cell microorganisms.

Output: sterilized


Input:
Sentence1: Any surface that has not been sterilized is likely to be covered with bacteria.
Sentence2: Any surface that has not been sterilized is likely to be covered with single cell microorganisms.

Output: surface


Input:
Sentence1: decomposition increases amount of organic matter in soil.
Sentence2: Plant respiration and decomposition of dead plant life consume dissolved oxygen in the water.

Output: decomposition


Input:
Sentence1: Masses are measured by difference on a balance.
Sentence2: balances indicate mass.

Output: Masses


Input:
Sentence1: Cells cannot survive without oxygen.
Sentence2: Cells are the units of function in living things.

Output: Cells


Input:
Sentence1: Medical treatment is overseen by medical personnel.
Sentence2: Hospital personnel may want to know your blood type.

Output: personnel


Input:
Sentence1: hitting an object causes the particles in that object to vibrate.
Sentence2: When metal is hit, it causes the particles in the metal to vibrate.

Output: causes


Input:
Sentence1: hitting an object causes the particles in that object to vibrate.
Sentence2: When metal is hit, it causes the particles in the metal to vibrate.

Output: hitting


Input:
Sentence1: hitting an object causes the particles in that object to vibrate.
Sentence2: When metal is hit, it causes the particles in the metal to vibrate.

Output: particles


Input:
Sentence1: hitting an object causes the particles in that object to vibrate.
Sentence2: When metal is hit, it causes the particles in the metal to vibrate.

Output: vibrate


Input:
Sentence1: erosion causes deposition.
Sentence2: wind causes deposition.

Output: causes


Input:
Sentence1: erosion causes deposition.
Sentence2: wind causes deposition.

Output: deposition


Input:
Sentence1: wiring requires an electrical conductor.
Sentence2: Ground wire acts as an extra conductor.

Output: wiring


Input:
Sentence1: Homeostasis is the chemical equilibrium of the body.
Sentence2: hormones control many cell activities and are important in the chemical equilibrium of the body.

Output: body


Input:
Sentence1: Homeostasis is the chemical equilibrium of the body.
Sentence2: hormones control many cell activities and are important in the chemical equilibrium of the body.

Output: chemical


Input:
Sentence1: Homeostasis is the chemical equilibrium of the body.
Sentence2: hormones control many cell activities and are important in the chemical equilibrium of the body.

Output: equilibrium


Input:
Sentence1: a cavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone.
Sentence2: Caverns are formed when acid dissolves limestone, creating a liquid.

Output: acid


Input:
Sentence1: a cavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone.
Sentence2: Caverns are formed when acid dissolves limestone, creating a liquid.

Output: cavern


Input:
Sentence1: a cavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone.
Sentence2: Caverns are formed when acid dissolves limestone, creating a liquid.

Output: formed


Input:
Sentence1: And in winter it s very cold.
Sentence2: In winter animals can adapt.

Output: winter


Input:
Sentence1: All photos are digital images.
Sentence2: satellites are used to take photos from space.

Output: photos


Input:
Sentence1: And, of course, the Sun is a star.
Sentence2: if the Sun collapses it can form a black hole.

Output: Sun


Input:
Sentence1: Butter is a fat that is a solid at room temperature.
Sentence2: butter is a fat that is a solid at about 295 degrees Kelvin.

Output: Butter


Input:
Sentence1: Butter is a fat that is a solid at room temperature.
Sentence2: butter is a fat that is a solid at about 295 degrees Kelvin.

Output: fat


Input:
Sentence1: Butter is a fat that is a solid at room temperature.
Sentence2: butter is a fat that is a solid at about 295 degrees Kelvin.

Output: solid


Input:
Sentence1: Gene flow occurs when individuals move into or out of a population.
Sentence2: Genetic diversity can be maintained when individuals move into or out of a population.

Output: individuals


Input:
Sentence1: Gene flow occurs when individuals move into or out of a population.
Sentence2: Genetic diversity can be maintained when individuals move into or out of a population.

Output: into


Input:
Sentence1: Gene flow occurs when individuals move into or out of a population.
Sentence2: Genetic diversity can be maintained when individuals move into or out of a population.

Output: move


Input:
Sentence1: Gene flow occurs when individuals move into or out of a population.
Sentence2: Genetic diversity can be maintained when individuals move into or out of a population.

Output: out


Input:
Sentence1: Gene flow occurs when individuals move into or out of a population.
Sentence2: Genetic diversity can be maintained when individuals move into or out of a population.

Output: population


Input:
Sentence1: Some trees are maples.
Sentence2: planting maples has a positive impact on an ecosystem.

Output: maples


Input:
Sentence1: Individual with best survival alleles survive with the largest handicap.
Sentence2: Animals require alleles for warmth.

Output: alleles


Input:
Sentence1: Olfaction is the sense of smell.
Sentence2: olfaction is used for finding food by some animals.

Output: Olfaction


Input:
Sentence1: All chemical reactions require activation energy to get started.
Sentence2: fires require activation energy to get started.

Output: activation


Input:
Sentence1: All chemical reactions require activation energy to get started.
Sentence2: fires require activation energy to get started.

Output: energy


Input:
Sentence1: All chemical reactions require activation energy to get started.
Sentence2: fires require activation energy to get started.

Output: get


Input:
Sentence1: All chemical reactions require activation energy to get started.
Sentence2: fires require activation energy to get started.

Output: require


Input:
Sentence1: All chemical reactions require activation energy to get started.
Sentence2: fires require activation energy to get started.

Output: started


Input:
Sentence1: Cells are the units of function in living things.
Sentence2: living things cannot survive without oxygen.

Output: living


Input:
Sentence1: Cells are the units of function in living things.
Sentence2: living things cannot survive without oxygen.

Output: things


Input:
Sentence1: Through weathering, the surface was eroded away, exposing igneous rock.
Sentence2: Eroding means breaking down rocks from larger whole into smaller pieces of rocks.

Output: eroded


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

Output: ova


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

Output: spermatozoa


Input:
Sentence1: An apple tree produces an apple fruit.
Sentence2: some flowers become apples.

Output: apple


Input:
Sentence1: carpooling decreases the amount of cars used to travel to a place.
Sentence2: Carpooling reduces air pollution.

Output: carpooling


Input:
Sentence1: Echinoderms lack a centralized nervous system.
Sentence2: Starfish lack a centralized nervous system.

Output: a


Input:
Sentence1: Echinoderms lack a centralized nervous system.
Sentence2: Starfish lack a centralized nervous system.

Output: centralized


Input:
Sentence1: Echinoderms lack a centralized nervous system.
Sentence2: Starfish lack a centralized nervous system.

Output: lack


Input:
Sentence1: Echinoderms lack a centralized nervous system.
Sentence2: Starfish lack a centralized nervous system.

Output: nervous


Input:
Sentence1: Echinoderms lack a centralized nervous system.
Sentence2: Starfish lack a centralized nervous system.

Output: system


Input:
Sentence1: For mating, communication is between individuals of the same organism.
Sentence2: animals use sound to find a mate.

Output: mating


Input:
Sentence1: Copper is an essential mineral.
Sentence2: copper is essential for the body.

Output: Copper


Input:
Sentence1: Animals and humans eat plants for their nutrients.
Sentence2: Animals eat plants to grow.

Output: plants


Input:
Sentence1: rest has a positive impact on a health.
Sentence2: food has a positive impact on health.

Output: health


Input:
Sentence1: DNA DNA is deoxyribonucleic acid.
Sentence2: deoxyribonucleic acid contains genetic instructions.

Output: acid


Input:
Sentence1: DNA DNA is deoxyribonucleic acid.
Sentence2: deoxyribonucleic acid contains genetic instructions.

Output: deoxyribonucleic


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

Output: Oxygen


Input:
Sentence1: Most fungi get organic compounds from dead organisms.
Sentence2: Moulds, yeasts, rusts, smuts, mildews, and mushrooms are all types of fungi.

Output: fungi


Input:
Sentence1: Smog contains particulates.
Sentence2: Smog contains sulfur.

Output: Smog


Input:
Sentence1: Smog contains particulates.
Sentence2: Smog contains sulfur.

Output: contains


Input:
Sentence1: a tape measure is used to measure length.
Sentence2: Lengths are given in centimeters.

Output: length


Input:
Sentence1: Almost all fossils are found in water-laid sediments.
Sentence2: Fossils of a water animal or plant are located in water-laid sediments.

Output: sediments


Input:
Sentence1: Almost all fossils are found in water-laid sediments.
Sentence2: Fossils of a water animal or plant are located in water-laid sediments.

Output: water-laid


Input:
Sentence1: HIV, the human immunodeficiency virus, is a retrovirus.
Sentence2: The human immunodeficiency virus infects and detroys helper T cells.

Output: human


Input:
Sentence1: HIV, the human immunodeficiency virus, is a retrovirus.
Sentence2: The human immunodeficiency virus infects and detroys helper T cells.

Output: immunodeficiency


Input:
Sentence1: HIV, the human immunodeficiency virus, is a retrovirus.
Sentence2: The human immunodeficiency virus infects and detroys helper T cells.

Output: virus


Input:
Sentence1: Ozone depletion results in higher levels of UV radiation reaching Earth.
Sentence2: less ozone means more ultraviolet light.

Output: Ozone


Input:
Sentence1: Hobby greenhouses used to be small glass houses or fiberglass buildings.
Sentence2: Glass or fiberglass buildings are used to protect plants by keeping them warm.

Output: buildings


Input:
Sentence1: Hobby greenhouses used to be small glass houses or fiberglass buildings.
Sentence2: Glass or fiberglass buildings are used to protect plants by keeping them warm.

Output: fiberglass


Input:
Sentence1: Hobby greenhouses used to be small glass houses or fiberglass buildings.
Sentence2: Glass or fiberglass buildings are used to protect plants by keeping them warm.

Output: glass


Input:
Sentence1: a firecracker converts chemical energy into sound.
Sentence2: Sound waves vibrate.

Output: sound


Input:
Sentence1: if gas is heated then that gas will expand.
Sentence2: Nitrogen gas is the most abundant gas in the atmosphere.

Output: gas


Input:
Sentence1: when the body is hot , sweat is produced to cool the body.
Sentence2: Your body uses evaporation to cool it down.

Output: body


Input:
Sentence1: when the body is hot , sweat is produced to cool the body.
Sentence2: Your body uses evaporation to cool it down.

Output: cool


Input:
Sentence1: exercise increases a body 's strength.
Sentence2: Isometric exercise is a sustained contraction of large muscles, such as weight lifting.

Output: exercise


Input:
Sentence1: a planet rotating causes cycles of day and night on that planet.
Sentence2: Gravitational pull causes alternative day cycles.

Output: day


Input:
Sentence1: a breathing mask is used for keeping harmful particles from entering the respiratory system.
Sentence2: Another respiratory defense is the immune system.

Output: respiratory


Input:
Sentence1: natural disasters can cause animals to leave an environment.
Sentence2: Life in a volcanic environment can nevertheless be treacherous for animals.

Output: environment


Input:
Sentence1: Immunodeficiency occurs when the immune system is not working properly.
Sentence2: People with healthy immune systems usually get well on their own.

Output: immune


Input:
Sentence1: Immunodeficiency occurs when the immune system is not working properly.
Sentence2: People with healthy immune systems usually get well on their own.

Output: system


Input:
Sentence1: heating salt water causes the water to evaporate while the salt remains.
Sentence2: Evaporation of the water leaves the salt on the surface.

Output: evaporate


Input:
Sentence1: Results underline the benefits of such vaccination policy.
Sentence2: vaccination policies have benefits to immunity.

Output: benefits


Input:
Sentence1: Results underline the benefits of such vaccination policy.
Sentence2: vaccination policies have benefits to immunity.

Output: policy


Input:
Sentence1: Results underline the benefits of such vaccination policy.
Sentence2: vaccination policies have benefits to immunity.

Output: vaccination


Input:
Sentence1: Reptiles have scales or plates.
Sentence2: Reptiles use their plates for protection.

Output: plates


Input:
Sentence1: loud noises can cause animals to startle.
Sentence2: loud noises can be dangerous.

Output: loud


Input:
Sentence1: Echinoderms lack respiratory and excretory systems.
Sentence2: starfish lack respiratory and excretory systems.

Output: excretory


Input:
Sentence1: Echinoderms lack respiratory and excretory systems.
Sentence2: starfish lack respiratory and excretory systems.

Output: lack


Input:
Sentence1: Echinoderms lack respiratory and excretory systems.
Sentence2: starfish lack respiratory and excretory systems.

Output: respiratory


Input:
Sentence1: Echinoderms lack respiratory and excretory systems.
Sentence2: starfish lack respiratory and excretory systems.

Output: systems


Input:
Sentence1: Almost all physical characteristics are genetic traits, inherited from parents.
Sentence2: Evolution is a change in the genetic traits of living things over time.

Output: genetic


Input:
Sentence1: Almost all physical characteristics are genetic traits, inherited from parents.
Sentence2: Evolution is a change in the genetic traits of living things over time.

Output: traits


Input:
Sentence1: Sponges are filter feeders.
Sentence2: Porifera are filter feeders.

Output: feeders


Input:
Sentence1: Sponges are filter feeders.
Sentence2: Porifera are filter feeders.

Output: filter


Input:
Sentence1: plasma is formed by electrons separating from atoms in stars.
Sentence2: electrons separate in stars.

Output: electrons


Input:
Sentence1: if fossils of an animal or plant are found in a place then that animal or plant used to live in that place.
Sentence2: Fossils are preserved original remains or preserved evidence of plants and animals.

Output: fossils


Input:
Sentence1: Lakes are generally bigger and deeper than ponds.
Sentence2: reservoirs are bigger and deeper than ponds.

Output: bigger


Input:
Sentence1: Lakes are generally bigger and deeper than ponds.
Sentence2: reservoirs are bigger and deeper than ponds.

Output: deeper


Input:
Sentence1: Lakes are generally bigger and deeper than ponds.
Sentence2: reservoirs are bigger and deeper than ponds.

Output: ponds


Input:
Sentence1: Lakes are generally bigger and deeper than ponds.
Sentence2: reservoirs are bigger and deeper than ponds.

Output: than


Input:
Sentence1: DNA is made up of nucleotides.
Sentence2: Mutations change DNA.

Output: DNA


Input:
Sentence1: Fertilization occurs when sperm swim to an egg inside an archegonium.
Sentence2: Pregnancy begins with a fertilized egg.

Output: Fertilization


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

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 unstable if the rate of breathing is too fast or too slow.

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 unstable if the rate of breathing is too fast or too slow.

Output: breathing


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

Output: fast


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

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 unstable if the rate of breathing is too fast or too slow.

Output: rate


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

Output: slow


Input:
Sentence1: landfills have a negative impact on the environment.
Sentence2: Most municipal trash is disposed of in such landfills.

Output: landfills


Input:
Sentence1: Molecules are the building blocks of a cell.
Sentence2: molecules build cells.

Output: Molecules


Input:
Sentence1: Dilation occurs when cell walls relax.
Sentence2: Blood flow is improved by vitamin E and it causes blood vessels to dilate or expand.

Output: Dilation


Input:
Sentence1: Fission takes place when an animal divides into two parts.
Sentence2: Euglenoids reproduce by dividing into two parts.

Output: divides


Input:
Sentence1: Fission takes place when an animal divides into two parts.
Sentence2: Euglenoids reproduce by dividing into two parts.

Output: parts


Input:
Sentence1: Fission takes place when an animal divides into two parts.
Sentence2: Euglenoids reproduce by dividing into two parts.

Output: two


Input:
Sentence1: Testosterone stimulates the reproductive organs to develop into male organs.
Sentence2: Testosterone stimulates the reproductive organ to form male genitalia.

Output: Testosterone


Input:
Sentence1: Testosterone stimulates the reproductive organs to develop into male organs.
Sentence2: Testosterone stimulates the reproductive organ to form male genitalia.

Output: organs


Input:
Sentence1: Testosterone stimulates the reproductive organs to develop into male organs.
Sentence2: Testosterone stimulates the reproductive organ to form male genitalia.

Output: reproductive


Input:
Sentence1: Testosterone stimulates the reproductive organs to develop into male organs.
Sentence2: Testosterone stimulates the reproductive organ to form male genitalia.

Output: stimulates


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

Output: years


Input:
Sentence1: Amphibians have sense organs to smell and taste chemicals.
Sentence2: Frogs are durable creatures that can smell and taste chemicals.

Output: chemicals


Input:
Sentence1: Flies are insects with two wings.
Sentence2: Flies are arthropods with two wings.

Output: Flies


Input:
Sentence1: an electron microscope is used for seeing very small objects by making them appear bigger.
Sentence2: Electron microscopes can make cells appear larger.

Output: appear


Input:
Sentence1: an electron microscope is used for seeing very small objects by making them appear bigger.
Sentence2: Electron microscopes can make cells appear larger.

Output: electron


Input:
Sentence1: an electron microscope is used for seeing very small objects by making them appear bigger.
Sentence2: Electron microscopes can make cells appear larger.

Output: microscope


Input:
Sentence1: Cancer is a disease that occurs when the cell cycle is no longer regulated.
Sentence2: Mitosis is part of the cell cycle.

Output: cell


Input:
Sentence1: Cancer is a disease that occurs when the cell cycle is no longer regulated.
Sentence2: Mitosis is part of the cell cycle.

Output: cycle


Input:
Sentence1: absorbing sunlight causes objects to heat.
Sentence2: Heat can harm the camera and the film.

Output: heat


Input:
Sentence1: hitting an object causes the particles in that object to vibrate.
Sentence2: Rock particles vibrate back and forth.

Output: particles


Input:
Sentence1: hitting an object causes the particles in that object to vibrate.
Sentence2: Rock particles vibrate back and forth.

Output: vibrate


Input:
Sentence1: electricity is used as an energy source by electrical devices.
Sentence2: electricity is a hazard.

Output: electricity


Input:
Sentence1: Gases as well as vapours can contaminate the workplace air.
Sentence2: When dangerous gas from an open container evaporates, it can contaminate a workplace.

Output: contaminate


Input:
Sentence1: Gases as well as vapours can contaminate the workplace air.
Sentence2: When dangerous gas from an open container evaporates, it can contaminate a workplace.

Output: workplace


Input:
Sentence1: Viviparous species include the hammerhead, bull shark, blue shark and lemon sharks.
Sentence2: hammerhead, bull shark, blue shark, and lemon sharks are called therian mammals.

Output: blue


Input:
Sentence1: Viviparous species include the hammerhead, bull shark, blue shark and lemon sharks.
Sentence2: hammerhead, bull shark, blue shark, and lemon sharks are called therian mammals.

Output: bull


Input:
Sentence1: Viviparous species include the hammerhead, bull shark, blue shark and lemon sharks.
Sentence2: hammerhead, bull shark, blue shark, and lemon sharks are called therian mammals.

Output: hammerhead


Input:
Sentence1: Viviparous species include the hammerhead, bull shark, blue shark and lemon sharks.
Sentence2: hammerhead, bull shark, blue shark, and lemon sharks are called therian mammals.

Output: lemon


Input:
Sentence1: Viviparous species include the hammerhead, bull shark, blue shark and lemon sharks.
Sentence2: hammerhead, bull shark, blue shark, and lemon sharks are called therian mammals.

Output: shark


Input:
Sentence1: Viviparous species include the hammerhead, bull shark, blue shark and lemon sharks.
Sentence2: hammerhead, bull shark, blue shark, and lemon sharks are called therian mammals.

Output: sharks


Input:
Sentence1: Playing is one way mammals and other animals learn how to behave.
Sentence2: Playing is one way cats learn how to behave.

Output: Playing


Input:
Sentence1: Playing is one way mammals and other animals learn how to behave.
Sentence2: Playing is one way cats learn how to behave.

Output: one


Input:
Sentence1: Playing is one way mammals and other animals learn how to behave.
Sentence2: Playing is one way cats learn how to behave.

Output: way


Input:
Sentence1: Vertebrates generally have a backbone called the spinal column.
Sentence2: Vertebrates are animals that have a spinal column in their skeletal system.

Output: column


Input:
Sentence1: Vertebrates generally have a backbone called the spinal column.
Sentence2: Vertebrates are animals that have a spinal column in their skeletal system.

Output: spinal


Input:
Sentence1: Most mollusks have shells.
Sentence2: Coral reefs and shells are made of calcium carbonate.

Output: shells


Input:
Sentence1: Some viruses live in a dormant state inside the body.
Sentence2: Viral infection means there is a virus living in the body.

Output: body


Input:
Sentence1: Another part of the inner ear is used for balance.
Sentence2: The inner ear helps with sensing and maintaining body position.

Output: ear


Input:
Sentence1: Another part of the inner ear is used for balance.
Sentence2: The inner ear helps with sensing and maintaining body position.

Output: inner


Input:
Sentence1: Mammalian teeth are important for digestion.
Sentence2: bat's teeth are important for digestion.

Output: digestion


Input:
Sentence1: Mammalian teeth are important for digestion.
Sentence2: bat's teeth are important for digestion.

Output: important


Input:
Sentence1: Mammalian teeth are important for digestion.
Sentence2: bat's teeth are important for digestion.

Output: teeth


Input:
Sentence1: Flowers attract pollinators, and fruits encourage animals to disperse the seeds.
Sentence2: Sweet fruit like apples are eaten by animals that disperse the undigested seeds.

Output: fruits


Input:
Sentence1: seasons cause change to the environment.
Sentence2: seasons cause change to native habitats.

Output: cause


Input:
Sentence1: seasons cause change to the environment.
Sentence2: seasons cause change to native habitats.

Output: change


Input:
Sentence1: seasons cause change to the environment.
Sentence2: seasons cause change to native habitats.

Output: seasons


Input:
Sentence1: Wheels reduce friction with the floor to help cars move.
Sentence2: pushing on the pedals of a bike cause friction reduction.

Output: friction


Input:
Sentence1: Wheels reduce friction with the floor to help cars move.
Sentence2: pushing on the pedals of a bike cause friction reduction.

Output: reduce


Input:
Sentence1: Sperm and eggs are cells known as gametes.
Sentence2: a sperm and an egg unite in fertilization and form a diploid zygote.

Output: Sperm


Input:
Sentence1: Sperm and eggs are cells known as gametes.
Sentence2: a sperm and an egg unite in fertilization and form a diploid zygote.

Output: eggs


Input:
Sentence1: Technology permits space travel and transportation.
Sentence2: space travel is used for moving people.

Output: space


Input:
Sentence1: Technology permits space travel and transportation.
Sentence2: space travel is used for moving people.

Output: travel


Input:
Sentence1: protein is used to repair cells by the human body.
Sentence2: DNA makes proteins, proteins build cells, and cells make up people.

Output: protein


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

Output: Vesicle


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

Output: requires


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

Output: transport


Input:
Sentence1: Wires connected to a source of electricity.
Sentence2: Electricity uses an electrical conductor.

Output: electricity


Input:
Sentence1: if an animal sweats then that animal 's bodily water decreases.
Sentence2: When an animal regulates their body temperature by releasing water, their bodily water decreases.

Output: bodily


Input:
Sentence1: if an animal sweats then that animal 's bodily water decreases.
Sentence2: When an animal regulates their body temperature by releasing water, their bodily water decreases.

Output: decreases


Input:
Sentence1: if an animal sweats then that animal 's bodily water decreases.
Sentence2: When an animal regulates their body temperature by releasing water, their bodily water decreases.

Output: water


Input:
Sentence1: Brain cells die quickly if their oxygen supply is cut off.
Sentence2: the heart stopping pumping can cut off oxygen to cells.

Output: cut


Input:
Sentence1: Brain cells die quickly if their oxygen supply is cut off.
Sentence2: the heart stopping pumping can cut off oxygen to cells.

Output: off


Input:
Sentence1: Brain cells die quickly if their oxygen supply is cut off.
Sentence2: the heart stopping pumping can cut off oxygen to cells.

Output: oxygen


Input:
Sentence1: Brain cells die quickly if their oxygen supply is cut off.
Sentence2: the heart stopping pumping can cut off oxygen to cells.

Output: supply


Input:
Sentence1: Allergies are an immune system response.
Sentence2: Lymphocytes  are the key cells involved in allergies.

Output: Allergies


Input:
Sentence1: rest has a positive impact on a health.
Sentence2: Sleeping has a positive impact on health.

Output: health


Input:
Sentence1: rest has a positive impact on a health.
Sentence2: Sleeping has a positive impact on health.

Output: impact


Input:
Sentence1: rest has a positive impact on a health.
Sentence2: Sleeping has a positive impact on health.

Output: positive


Input:
Sentence1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil.
Sentence2: looseness of soil has a positive impact on orchids root growth.

Output: growth


Input:
Sentence1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil.
Sentence2: looseness of soil has a positive impact on orchids root growth.

Output: impact


Input:
Sentence1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil.
Sentence2: looseness of soil has a positive impact on orchids root growth.

Output: looseness


Input:
Sentence1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil.
Sentence2: looseness of soil has a positive impact on orchids root growth.

Output: positive


Input:
Sentence1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil.
Sentence2: looseness of soil has a positive impact on orchids root growth.

Output: roots'


Input:
Sentence1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil.
Sentence2: looseness of soil has a positive impact on orchids root growth.

Output: soil


Input:
Sentence1: heat and pressure change the remains of prehistoric living things into natural gas.
Sentence2: Heat and pressure turns plants into gas.

Output: heat


Input:
Sentence1: heat and pressure change the remains of prehistoric living things into natural gas.
Sentence2: Heat and pressure turns plants into gas.

Output: pressure


Input:
Sentence1: Behaviors that improve fitness increase through natural selection.
Sentence2: Behaviors that improve fitness increase through evolution.

Output: Behaviors


Input:
Sentence1: Behaviors that improve fitness increase through natural selection.
Sentence2: Behaviors that improve fitness increase through evolution.

Output: fitness


Input:
Sentence1: Behaviors that improve fitness increase through natural selection.
Sentence2: Behaviors that improve fitness increase through evolution.

Output: improve


Input:
Sentence1: Behaviors that improve fitness increase through natural selection.
Sentence2: Behaviors that improve fitness increase through evolution.

Output: increase


Input:
Sentence1: Behaviors that improve fitness increase through natural selection.
Sentence2: Behaviors that improve fitness increase through evolution.

Output: that


Input:
Sentence1: Behaviors that improve fitness increase through natural selection.
Sentence2: Behaviors that improve fitness increase through evolution.

Output: through


Input:
Sentence1: Mulberry trees are deciduous.
Sentence2: Mulberry trees seasonally shed their leaves.

Output: Mulberry


Input:
Sentence1: Mulberry trees are deciduous.
Sentence2: Mulberry trees seasonally shed their leaves.

Output: trees


Input:
Sentence1: Chromosomes contain genes, which code for proteins.
Sentence2: Chromosomes contain a recipe for the manufacture of proteins.

Output: Chromosomes


Input:
Sentence1: Chromosomes contain genes, which code for proteins.
Sentence2: Chromosomes contain a recipe for the manufacture of proteins.

Output: contain


Input:
Sentence1: Macroevolution is more than repeated rounds of microevolution.
Sentence2: evolution over geologic time above the level of the species is more than repeated rounds of microevolution.

Output: microevolution


Input:
Sentence1: Macroevolution is more than repeated rounds of microevolution.
Sentence2: evolution over geologic time above the level of the species is more than repeated rounds of microevolution.

Output: more


Input:
Sentence1: Macroevolution is more than repeated rounds of microevolution.
Sentence2: evolution over geologic time above the level of the species is more than repeated rounds of microevolution.

Output: repeated


Input:
Sentence1: Macroevolution is more than repeated rounds of microevolution.
Sentence2: evolution over geologic time above the level of the species is more than repeated rounds of microevolution.

Output: rounds


Input:
Sentence1: Macroevolution is more than repeated rounds of microevolution.
Sentence2: evolution over geologic time above the level of the species is more than repeated rounds of microevolution.

Output: than


Input:
Sentence1: Some viruses can cause cancer.
Sentence2: Oncogenic viruses are viruses that are linked to cancer.

Output: cancer


Input:
Sentence1: Black widow spiders construct funnel-shaped webs.
Sentence2: black widows use webs to capture food.

Output: Black


Input:
Sentence1: Black widow spiders construct funnel-shaped webs.
Sentence2: black widows use webs to capture food.

Output: widow


Input:
Sentence1: astronauts require preserved food for extended flights.
Sentence2: An astronaut is a scientist who is a space explorer.

Output: astronauts


Input:
Sentence1: Plants live just about everywhere on Earth.
Sentence2: Photosynthesis can be found just about everywhere on Earth.

Output: Earth


Input:
Sentence1: Plants live just about everywhere on Earth.
Sentence2: Photosynthesis can be found just about everywhere on Earth.

Output: about


Input:
Sentence1: Plants live just about everywhere on Earth.
Sentence2: Photosynthesis can be found just about everywhere on Earth.

Output: everywhere


Input:
Sentence1: Plants live just about everywhere on Earth.
Sentence2: Photosynthesis can be found just about everywhere on Earth.

Output: just


Input:
Sentence1: a laser is used for producing light.
Sentence2: A laser can produce rays.

Output: laser


Input:
Sentence1: a laser is used for producing light.
Sentence2: A laser can produce rays.

Output: producing


Input:
Sentence1: Insects are the largest group of arthropods.
Sentence2: Insects have a life cycle with sexual reproduction.

Output: Insects


Input:
Sentence1: Most sponges are hermaphroditic, meaning that a single organism has both eggs and sperm.
Sentence2: sponges are hermaphrodites.

Output: hermaphroditic


Input:
Sentence1: a compass is used to navigate oceans.
Sentence2: Mariners use the compass to travel the ocean.

Output: compass


Input:
Sentence1: Bees also collect pollen.
Sentence2: bees collect tiny grains that are the male gametes of plants.

Output: Bees


Input:
Sentence1: Bees also collect pollen.
Sentence2: bees collect tiny grains that are the male gametes of plants.

Output: collect


Input:
Sentence1: Annelids have the amazing capacity to regrow segments that break off.
Sentence2: Earthworms have the amazing capacity to regrow segments that break off.

Output: amazing


Input:
Sentence1: Annelids have the amazing capacity to regrow segments that break off.
Sentence2: Earthworms have the amazing capacity to regrow segments that break off.

Output: break


Input:
Sentence1: Annelids have the amazing capacity to regrow segments that break off.
Sentence2: Earthworms have the amazing capacity to regrow segments that break off.

Output: capacity


Input:
Sentence1: Annelids have the amazing capacity to regrow segments that break off.
Sentence2: Earthworms have the amazing capacity to regrow segments that break off.

Output: have


Input:
Sentence1: Annelids have the amazing capacity to regrow segments that break off.
Sentence2: Earthworms have the amazing capacity to regrow segments that break off.

Output: off


Input:
Sentence1: Annelids have the amazing capacity to regrow segments that break off.
Sentence2: Earthworms have the amazing capacity to regrow segments that break off.

Output: regrow


Input:
Sentence1: Annelids have the amazing capacity to regrow segments that break off.
Sentence2: Earthworms have the amazing capacity to regrow segments that break off.

Output: segments


Input:
Sentence1: Annelids have the amazing capacity to regrow segments that break off.
Sentence2: Earthworms have the amazing capacity to regrow segments that break off.

Output: that


Input:
Sentence1: Seed refers to offspring, children.
Sentence2: Organisms give rise to children by reproduction.

Output: children


Input:
Sentence1: matter vibrating can cause sound.
Sentence2: Sound causes it to move like the head of a drum.

Output: sound


Input:
Sentence1: Mutualism is a symbiotic relationship in which both species benefit.
Sentence2: cucumbers and corn possess a mutualism in which both species benefit.

Output: Mutualism


Input:
Sentence1: Mutualism is a symbiotic relationship in which both species benefit.
Sentence2: cucumbers and corn possess a mutualism in which both species benefit.

Output: benefit


Input:
Sentence1: Mutualism is a symbiotic relationship in which both species benefit.
Sentence2: cucumbers and corn possess a mutualism in which both species benefit.

Output: both


Input:
Sentence1: Mutualism is a symbiotic relationship in which both species benefit.
Sentence2: cucumbers and corn possess a mutualism in which both species benefit.

Output: species


Input:
Sentence1: Insects are just part of the Arthropod subdivision.
Sentence2: arthropods can spread disease and destroy crops.

Output: Arthropod


Input:
Sentence1: disease-causing microbes have a negative impact on the body.
Sentence2: pathogens have a negative impact on the body.

Output: body


Input:
Sentence1: disease-causing microbes have a negative impact on the body.
Sentence2: pathogens have a negative impact on the body.

Output: impact


Input:
Sentence1: disease-causing microbes have a negative impact on the body.
Sentence2: pathogens have a negative impact on the body.

Output: negative


Input:
Sentence1: Water reduces friction, and allows the ice to move faster.
Sentence2: Scales protect fish from predators and parasites and allow them to move faster.

Output: allows


Input:
Sentence1: Water reduces friction, and allows the ice to move faster.
Sentence2: Scales protect fish from predators and parasites and allow them to move faster.

Output: faster


Input:
Sentence1: Water reduces friction, and allows the ice to move faster.
Sentence2: Scales protect fish from predators and parasites and allow them to move faster.

Output: move


Input:
Sentence1: Sperm had to swim from male to female reproductive organs for fertilization.
Sentence2: male gametes swim to female reproductive organs for fertilization.

Output: fertilization


Input:
Sentence1: Sperm had to swim from male to female reproductive organs for fertilization.
Sentence2: male gametes swim to female reproductive organs for fertilization.

Output: male


Input:
Sentence1: Sperm had to swim from male to female reproductive organs for fertilization.
Sentence2: male gametes swim to female reproductive organs for fertilization.

Output: organs


Input:
Sentence1: Sperm had to swim from male to female reproductive organs for fertilization.
Sentence2: male gametes swim to female reproductive organs for fertilization.

Output: reproductive


Input:
Sentence1: Sperm had to swim from male to female reproductive organs for fertilization.
Sentence2: male gametes swim to female reproductive organs for fertilization.

Output: swim


Input:
Sentence1: Electron microscopes use a beam of electrons as their source of illumination.
Sentence2: Electrons are used to illuminate small objects and make them appear bigger.

Output: illumination


Input:
Sentence1: keeping food cold is used for keeping food fresh.
Sentence2: Keeping things cold in a fridge is a way to adequately store them.

Output: cold


Input:
Sentence1: keeping food cold is used for keeping food fresh.
Sentence2: Keeping things cold in a fridge is a way to adequately store them.

Output: keeping


Input:
Sentence1: zinc has a positive impact on the healing of wounds.
Sentence2: Zinc has a positive impact on injury to the skin and underlying soft tissues.

Output: impact


Input:
Sentence1: zinc has a positive impact on the healing of wounds.
Sentence2: Zinc has a positive impact on injury to the skin and underlying soft tissues.

Output: positive


Input:
Sentence1: zinc has a positive impact on the healing of wounds.
Sentence2: Zinc has a positive impact on injury to the skin and underlying soft tissues.

Output: zinc


Input:
Sentence1: bad weather decreases visibility while driving.
Sentence2: Bad weather makes collisions more likely while driving.

Output: bad


Input:
Sentence1: bad weather decreases visibility while driving.
Sentence2: Bad weather makes collisions more likely while driving.

Output: driving


Input:
Sentence1: bad weather decreases visibility while driving.
Sentence2: Bad weather makes collisions more likely while driving.

Output: weather


Input:
Sentence1: Bacteria may spread directly from one person to another.
Sentence2: Thus, touching the head of another person, threatens the well being of that person.

Output: another


Input:
Sentence1: Pathogens : a few types of bacteria in food are responsible for causing illness and are referred  to as pathogens.
Sentence2: Some types of bacteria in food can cause disease.

Output: bacteria


Input:
Sentence1: Pathogens : a few types of bacteria in food are responsible for causing illness and are referred  to as pathogens.
Sentence2: Some types of bacteria in food can cause disease.

Output: food


Input:
Sentence1: Pathogens : a few types of bacteria in food are responsible for causing illness and are referred  to as pathogens.
Sentence2: Some types of bacteria in food can cause disease.

Output: types


Input:
Sentence1: Infancy is the period of most rapid growth after birth.
Sentence2: children love to move in the period after birth.

Output: after


Input:
Sentence1: Infancy is the period of most rapid growth after birth.
Sentence2: children love to move in the period after birth.

Output: birth


Input:
Sentence1: Infancy is the period of most rapid growth after birth.
Sentence2: children love to move in the period after birth.

Output: period


Input:
Sentence1: keeping food cold is used for keeping food fresh.
Sentence2: A refrigerator is used for keeping food fresh.

Output: food


Input:
Sentence1: keeping food cold is used for keeping food fresh.
Sentence2: A refrigerator is used for keeping food fresh.

Output: fresh


Input:
Sentence1: keeping food cold is used for keeping food fresh.
Sentence2: A refrigerator is used for keeping food fresh.

Output: keeping


Input:
Sentence1: Communities consist of populations of different species.
Sentence2: Wetlands consist of populations of herons and different species.

Output: consist


Input:
Sentence1: Communities consist of populations of different species.
Sentence2: Wetlands consist of populations of herons and different species.

Output: different


Input:
Sentence1: Communities consist of populations of different species.
Sentence2: Wetlands consist of populations of herons and different species.

Output: populations


Input:
Sentence1: Communities consist of populations of different species.
Sentence2: Wetlands consist of populations of herons and different species.

Output: species


Input:
Sentence1: Introns are regions that do not code for proteins.
Sentence2: Protein There are many types of protein.

Output: proteins


Input:
Sentence1: Small lymph capillaries collect lymph.
Sentence2: small capillaries collect fluid.

Output: Small


Input:
Sentence1: Small lymph capillaries collect lymph.
Sentence2: small capillaries collect fluid.

Output: collect


Input:
Sentence1: Cynodonts became more mammal-like as they continued to evolve.
Sentence2: mammals are evolved from tritylodonts.

Output: evolve


Input:
Sentence1: a telephone is used for communication by humans over long distances.
Sentence2: nokia is used for communication by humans over long distances.

Output: communication


Input:
Sentence1: a telephone is used for communication by humans over long distances.
Sentence2: nokia is used for communication by humans over long distances.

Output: distances


Input:
Sentence1: a telephone is used for communication by humans over long distances.
Sentence2: nokia is used for communication by humans over long distances.

Output: humans


Input:
Sentence1: a telephone is used for communication by humans over long distances.
Sentence2: nokia is used for communication by humans over long distances.

Output: long


Input:
Sentence1: a telephone is used for communication by humans over long distances.
Sentence2: nokia is used for communication by humans over long distances.

Output: used


Input:
Sentence1: Antibiotics have no effect on viruses.
Sentence2: Viruses are submicroscopic, cylindrical or spherical bodies.

Output: viruses


Input:
Sentence1: sonar is used to find the location of an object.
Sentence2: Sonar is used to find other submarines.

Output: sonar


Input:
Sentence1: All sound is created by vibrations.
Sentence2: a rubber band snapping causes the particles to make sound.

Output: sound


Input:
Sentence1: a magnet moving in a coil of copper wire can cause an electric current.
Sentence2: Electricity is passed through the copper to magnetize the core.

Output: copper


Input:
Sentence1: a magnet moving in a coil of copper wire can cause an electric current.
Sentence2: Electricity is passed through the copper to magnetize the core.

Output: electric


Input:
Sentence1: medicine is used for curing people when they are sick.
Sentence2: Herbs are medicines and aids.

Output: medicine


Input:
Sentence1: Male gametes are sperm.
Sentence2: male gametes are released into the surrounding water through the osculum.

Output: Male


Input:
Sentence1: Male gametes are sperm.
Sentence2: male gametes are released into the surrounding water through the osculum.

Output: gametes


Input:
Sentence1: Rivers are dammed to create reservoirs and hydroelectric power.
Sentence2: A byproduct of hydropower are resevoirs.

Output: reservoirs


Input:
Sentence1: a telephone is used for communication by humans over long distances.
Sentence2: Communication is essential if a relationship is to last the distance.

Output: communication


Input:
Sentence1: Predators are the animals that eat prey.
Sentence2: Being a predator requires catching prey.

Output: Predators


Input:
Sentence1: boiling means change from a liquid into a gas by adding heat energy.
Sentence2: For a smoother flavor, bring soup to a boil.

Output: boiling


Input:
Sentence1: Without myelin, nerves are unable to conduct their electrical impulses.
Sentence2: Nerves need myelin to function.

Output: myelin


Input:
Sentence1: igneous rocks are formed from magma cooling.
Sentence2: Igneous rocks are formed by the solidification of magma.

Output: igneous


Input:
Sentence1: igneous rocks are formed from magma cooling.
Sentence2: Igneous rocks are formed by the solidification of magma.

Output: rocks


Input:
Sentence1: burning wood is used to produce heat.
Sentence2: burning oak is used to produce heat.

Output: burning


Input:
Sentence1: burning wood is used to produce heat.
Sentence2: burning oak is used to produce heat.

Output: heat


Input:
Sentence1: burning wood is used to produce heat.
Sentence2: burning oak is used to produce heat.

Output: produce


Input:
Sentence1: burning wood is used to produce heat.
Sentence2: burning oak is used to produce heat.

Output: used


Input:
Sentence1: a battery converts chemical energy into electrical energy.
Sentence2: A battery produces a flow of electrons.

Output: battery


Input:
Sentence1: Petals are great for potpourri or for making rose petal jelly.
Sentence2: Something great for potpourri attracts pollinators to the flower.

Output: potpourri


Input:
Sentence1: Fireworks that only make a loud noise are called firecrackers.
Sentence2: Fireworks convert chemical energy into sound.

Output: Fireworks


Input:
Sentence1: Carbon may be stored in sedimentary rock for millions of years.
Sentence2: carbon may be stored in limestone for million of years.

Output: Carbon


Input:
Sentence1: Carbon may be stored in sedimentary rock for millions of years.
Sentence2: carbon may be stored in limestone for million of years.

Output: millions


Input:
Sentence1: Carbon may be stored in sedimentary rock for millions of years.
Sentence2: carbon may be stored in limestone for million of years.

Output: stored


Input:
Sentence1: Carbon may be stored in sedimentary rock for millions of years.
Sentence2: carbon may be stored in limestone for million of years.

Output: years


Input:
Sentence1: conserving water can be used for survival in a dry environment.
Sentence2: Expandable stems help many cacti survive in dry environments.

Output: dry


Input:
Sentence1: conserving water can be used for survival in a dry environment.
Sentence2: Expandable stems help many cacti survive in dry environments.

Output: environment


Input:
Sentence1: conserving water can be used for survival in a dry environment.
Sentence2: Expandable stems help many cacti survive in dry environments.

Output: survival


Input:
Sentence1: Transcription takes place in the nucleus.
Sentence2: Chromosomes are part of the cell nucleus.

Output: nucleus


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

Output: Secondary


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

Output: meristem


Input:
Sentence1: When caves contain connecting rooms, they are called caverns.
Sentence2: Caves can be formed by carbonic acid in groundwater seeping through rock and dissolving limestone.

Output: caves


Input:
Sentence1: Running water is better able to dissolve oxygen and nutrients than standing water.
Sentence2: running H2O dissolves oxygen better than standing H2O.

Output: Running


Input:
Sentence1: Running water is better able to dissolve oxygen and nutrients than standing water.
Sentence2: running H2O dissolves oxygen better than standing H2O.

Output: better


Input:
Sentence1: Running water is better able to dissolve oxygen and nutrients than standing water.
Sentence2: running H2O dissolves oxygen better than standing H2O.

Output: dissolve


Input:
Sentence1: Running water is better able to dissolve oxygen and nutrients than standing water.
Sentence2: running H2O dissolves oxygen better than standing H2O.

Output: oxygen


Input:
Sentence1: Running water is better able to dissolve oxygen and nutrients than standing water.
Sentence2: running H2O dissolves oxygen better than standing H2O.

Output: standing


Input:
Sentence1: Active immunity results when an immune response to a pathogen produces memory cells.
Sentence2: Memory cells are the basis of immunological memory.

Output: cells


Input:
Sentence1: Chloroplasts contain the green pigment chlorophyll.
Sentence2: Photosynthetic Pigments Photosynthetic Pigments Pigments are colorful compounds.

Output: pigment


Input:
Sentence1: Protists are single celled organisms containing organelles.
Sentence2: slime molds are fungus-like single celled organisms.

Output: celled


Input:
Sentence1: Protists are single celled organisms containing organelles.
Sentence2: slime molds are fungus-like single celled organisms.

Output: organisms


Input:
Sentence1: Protists are single celled organisms containing organelles.
Sentence2: slime molds are fungus-like single celled organisms.

Output: single


Input:
Sentence1: freezing means changing from a liquid into a solid by reducing heat energy.
Sentence2: Water freezes into ice when cooled.

Output: freezing


Input:
Sentence1: a compass is used for determining direction.
Sentence2: a compass is used for navigation.

Output: a


Input:
Sentence1: a compass is used for determining direction.
Sentence2: a compass is used for navigation.

Output: compass


Input:
Sentence1: a compass is used for determining direction.
Sentence2: a compass is used for navigation.

Output: used


Input:
Sentence1: Freezing water expands cracking and breaking the rocks.
Sentence2: Ice wedging is when freezing water expands and breaks rocks.

Output: Freezing


Input:
Sentence1: Freezing water expands cracking and breaking the rocks.
Sentence2: Ice wedging is when freezing water expands and breaks rocks.

Output: breaking


Input:
Sentence1: Freezing water expands cracking and breaking the rocks.
Sentence2: Ice wedging is when freezing water expands and breaks rocks.

Output: expands


Input:
Sentence1: Freezing water expands cracking and breaking the rocks.
Sentence2: Ice wedging is when freezing water expands and breaks rocks.

Output: rocks


Input:
Sentence1: Freezing water expands cracking and breaking the rocks.
Sentence2: Ice wedging is when freezing water expands and breaks rocks.

Output: water


Input:
Sentence1: when electricity flows to a light bulb , the light bulb will turn on.
Sentence2: when energy flows to a light bulb, it will turn on.

Output: bulb


Input:
Sentence1: when electricity flows to a light bulb , the light bulb will turn on.
Sentence2: when energy flows to a light bulb, it will turn on.

Output: flows


Input:
Sentence1: when electricity flows to a light bulb , the light bulb will turn on.
Sentence2: when energy flows to a light bulb, it will turn on.

Output: light


Input:
Sentence1: when electricity flows to a light bulb , the light bulb will turn on.
Sentence2: when energy flows to a light bulb, it will turn on.

Output: on


Input:
Sentence1: when electricity flows to a light bulb , the light bulb will turn on.
Sentence2: when energy flows to a light bulb, it will turn on.

Output: turn


Input:
Sentence1: when electricity flows to a light bulb , the light bulb will turn on.
Sentence2: when energy flows to a light bulb, it will turn on.

Output: when


Input:
Sentence1: a flashlight requires a source of electricity to produce light.
Sentence2: Flashlights are powered by batteries to produce light.

Output: light


Input:
Sentence1: a flashlight requires a source of electricity to produce light.
Sentence2: Flashlights are powered by batteries to produce light.

Output: produce


Input:
Sentence1: Viruses are not cells at all, so they are neither prokaryotes nor eukaryotes.
Sentence2: The smallest agents of disease are not cells at all, so they are neither prokaryotes nor eukaryotes.

Output: cells


Input:
Sentence1: Viruses are not cells at all, so they are neither prokaryotes nor eukaryotes.
Sentence2: The smallest agents of disease are not cells at all, so they are neither prokaryotes nor eukaryotes.

Output: eukaryotes


Input:
Sentence1: Viruses are not cells at all, so they are neither prokaryotes nor eukaryotes.
Sentence2: The smallest agents of disease are not cells at all, so they are neither prokaryotes nor eukaryotes.

Output: neither


Input:
Sentence1: Viruses are not cells at all, so they are neither prokaryotes nor eukaryotes.
Sentence2: The smallest agents of disease are not cells at all, so they are neither prokaryotes nor eukaryotes.

Output: not


Input:
Sentence1: Viruses are not cells at all, so they are neither prokaryotes nor eukaryotes.
Sentence2: The smallest agents of disease are not cells at all, so they are neither prokaryotes nor eukaryotes.

Output: prokaryotes


Input:
Sentence1: landfills have a negative impact on the environment.
Sentence2: Solid waste is stored in landfills.

Output: landfills


Input:
Sentence1: Polyps usually reproduce asexually.
Sentence2: All corals begin as a single polyp.

Output: Polyps


Input:
Sentence1: Interest in fossils is worldwide.
Sentence2: paleontologists study something with worldwide interest.

Output: Interest


Input:
Sentence1: Interest in fossils is worldwide.
Sentence2: paleontologists study something with worldwide interest.

Output: worldwide


Input:
Sentence1: All marine turtles are considered to be endangered species.
Sentence2: some turtles live mainly in shallow coastal waters.

Output: turtles