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an ocean is a kind of body of water & a body of water is a kind of environment -> an <mask> is a kind of environment
ocean
an ocean is a kind of body of water & a body of water is a kind of environment -> an ocean is a <mask> of environment
kind
an ocean is a kind of body of water & a body of water is a kind of environment -> an ocean is a kind of <mask>
environment
an ocean is a kind of environment & a tropical environment usually has warm temperatures -> a tropical <mask> usually has warm temperatures
ocean
an ocean is a kind of environment & a tropical environment usually has warm temperatures -> a tropical ocean usually has <mask> temperatures
warm
an ocean is a kind of environment & a tropical environment usually has warm temperatures -> a tropical ocean usually has warm <mask>
temperatures
a tropical ocean usually has warm temperatures & coral lives in tropical oceans -> <mask> lives in warm oceans
coral
a tropical ocean usually has warm temperatures & coral lives in tropical oceans -> coral <mask> in warm oceans
lives
a tropical ocean usually has warm temperatures & coral lives in tropical oceans -> coral lives in <mask> oceans
warm
a tropical ocean usually has warm temperatures & coral lives in tropical oceans -> coral lives in warm <mask>
oceans
coral lives in warm oceans & coral is a kind of aquatic animal -> <mask> are aquatic animals that live in warm oceans
corals
coral lives in warm oceans & coral is a kind of aquatic animal -> corals are <mask> animals that live in warm oceans
aquatic
coral lives in warm oceans & coral is a kind of aquatic animal -> corals are aquatic <mask> that live in warm oceans
animals
coral lives in warm oceans & coral is a kind of aquatic animal -> corals are aquatic animals that <mask> in warm oceans
live
coral lives in warm oceans & coral is a kind of aquatic animal -> corals are aquatic animals that live in <mask> oceans
warm
coral lives in warm oceans & coral is a kind of aquatic animal -> corals are aquatic animals that live in warm <mask>
oceans
corals are aquatic animals that live in warm oceans & an ocean is a kind of body of water & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if <mask> of corals are found in a place then that place used to be covered by warm oceans in the past
fossils
corals are aquatic animals that live in warm oceans & an ocean is a kind of body of water & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of <mask> are found in a place then that place used to be covered by warm oceans in the past
corals
corals are aquatic animals that live in warm oceans & an ocean is a kind of body of water & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of corals are <mask> in a place then that place used to be covered by warm oceans in the past
found
corals are aquatic animals that live in warm oceans & an ocean is a kind of body of water & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of corals are found in a <mask> then that place used to be covered by warm oceans in the past
place
corals are aquatic animals that live in warm oceans & an ocean is a kind of body of water & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of corals are found in a place then that <mask> used to be covered by warm oceans in the past
place
corals are aquatic animals that live in warm oceans & an ocean is a kind of body of water & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of corals are found in a place then that place <mask> to be covered by warm oceans in the past
used
corals are aquatic animals that live in warm oceans & an ocean is a kind of body of water & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of corals are found in a place then that place used to be <mask> by warm oceans in the past
covered
corals are aquatic animals that live in warm oceans & an ocean is a kind of body of water & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of corals are found in a place then that place used to be covered by <mask> oceans in the past
warm
corals are aquatic animals that live in warm oceans & an ocean is a kind of body of water & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of corals are found in a place then that place used to be covered by warm <mask> in the past
oceans
corals are aquatic animals that live in warm oceans & an ocean is a kind of body of water & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of corals are found in a place then that place used to be covered by warm oceans in the <mask>
past
if fossils of corals are found in a place then that place used to be covered by warm oceans in the past & fossils of corals are found in ohio -> <mask> used to be covered in warm oceans in the past
ohio
if fossils of corals are found in a place then that place used to be covered by warm oceans in the past & fossils of corals are found in ohio -> ohio <mask> to be covered in warm oceans in the past
used
if fossils of corals are found in a place then that place used to be covered by warm oceans in the past & fossils of corals are found in ohio -> ohio used to be <mask> in warm oceans in the past
covered
if fossils of corals are found in a place then that place used to be covered by warm oceans in the past & fossils of corals are found in ohio -> ohio used to be covered in <mask> oceans in the past
warm
if fossils of corals are found in a place then that place used to be covered by warm oceans in the past & fossils of corals are found in ohio -> ohio used to be covered in warm <mask> in the past
oceans
if fossils of corals are found in a place then that place used to be covered by warm oceans in the past & fossils of corals are found in ohio -> ohio used to be covered in warm oceans in the <mask>
past
a wooded area is a kind of place & if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & fossils of seashells are found in a wooded area -> the wooded <mask> used to be covered by water in the past
area
a wooded area is a kind of place & if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & fossils of seashells are found in a wooded area -> the wooded area <mask> to be covered by water in the past
used
a wooded area is a kind of place & if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & fossils of seashells are found in a wooded area -> the wooded area used to be <mask> by water in the past
covered
a wooded area is a kind of place & if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & fossils of seashells are found in a wooded area -> the wooded area used to be covered by <mask> in the past
water
a wooded area is a kind of place & if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & fossils of seashells are found in a wooded area -> the wooded area used to be covered by water in the <mask>
past
the wooded area used to be covered by water in the past & if something used to be in the past then that something has changed -> the <mask> has changed from being covered by water to a wooded area
place
the wooded area used to be covered by water in the past & if something used to be in the past then that something has changed -> the place has <mask> from being covered by water to a wooded area
changed
the wooded area used to be covered by water in the past & if something used to be in the past then that something has changed -> the place has changed from being <mask> by water to a wooded area
covered
the wooded area used to be covered by water in the past & if something used to be in the past then that something has changed -> the place has changed from being covered by <mask> to a wooded area
water
the wooded area used to be covered by water in the past & if something used to be in the past then that something has changed -> the place has changed from being covered by water to a wooded <mask>
area
a dinosaur is a kind of reptile & a reptile is a kind of animal -> a <mask> is a kind of animal
dinosaur
a dinosaur is a kind of reptile & a reptile is a kind of animal -> a dinosaur is a <mask> of animal
kind
a dinosaur is a kind of reptile & a reptile is a kind of animal -> a dinosaur is a kind of <mask>
animal
a dinosaur is a kind of animal & if fossils of an animal or plant are found in a place then that animal or plant used to live in that place & fossils of dinosaurs are found in antarctica -> <mask> used to live in antarctica
dinosaurs
a dinosaur is a kind of animal & if fossils of an animal or plant are found in a place then that animal or plant used to live in that place & fossils of dinosaurs are found in antarctica -> dinosaurs <mask> to live in antarctica
used
a dinosaur is a kind of animal & if fossils of an animal or plant are found in a place then that animal or plant used to live in that place & fossils of dinosaurs are found in antarctica -> dinosaurs used to <mask> in antarctica
live
a dinosaur is a kind of animal & if fossils of an animal or plant are found in a place then that animal or plant used to live in that place & fossils of dinosaurs are found in antarctica -> dinosaurs used to live in <mask>
antarctica
a dinosaur is a kind of reptile & a reptile is cold-blooded -> <mask> are cold-blooded
dinosaurs
a dinosaur is a kind of animal & dinosaurs are cold-blooded -> <mask> are cold-blooded animals
dinosaurs
a dinosaur is a kind of animal & dinosaurs are cold-blooded -> dinosaurs are cold-blooded <mask>
animals
dinosaurs are cold-blooded animals & cold-blooded animals cannot live in cold environments -> <mask> cannot live in cold environments
dinosaurs
dinosaurs are cold-blooded animals & cold-blooded animals cannot live in cold environments -> dinosaurs cannot <mask> in cold environments
live
dinosaurs are cold-blooded animals & cold-blooded animals cannot live in cold environments -> dinosaurs cannot live in <mask> environments
cold
dinosaurs are cold-blooded animals & cold-blooded animals cannot live in cold environments -> dinosaurs cannot live in cold <mask>
environments
dinosaurs used to live in antarctica & dinosaurs cannot live in cold environments -> <mask> was not a cold environment when dinosaurs used to live in antarctica
antarctica
dinosaurs used to live in antarctica & dinosaurs cannot live in cold environments -> antarctica was not a <mask> environment when dinosaurs used to live in antarctica
cold
dinosaurs used to live in antarctica & dinosaurs cannot live in cold environments -> antarctica was not a cold <mask> when dinosaurs used to live in antarctica
environment
dinosaurs used to live in antarctica & dinosaurs cannot live in cold environments -> antarctica was not a cold environment when <mask> used to live in antarctica
dinosaurs
dinosaurs used to live in antarctica & dinosaurs cannot live in cold environments -> antarctica was not a cold environment when dinosaurs <mask> to live in antarctica
used
dinosaurs used to live in antarctica & dinosaurs cannot live in cold environments -> antarctica was not a cold environment when dinosaurs used to <mask> in antarctica
live
dinosaurs used to live in antarctica & dinosaurs cannot live in cold environments -> antarctica was not a cold environment when dinosaurs used to live in <mask>
antarctica
a shark is a kind of fish & a fish is a kind of aquatic animal -> a <mask> is a kind of aquatic animal
shark
a shark is a kind of fish & a fish is a kind of aquatic animal -> a shark is a <mask> of aquatic animal
kind
a shark is a kind of fish & a fish is a kind of aquatic animal -> a shark is a kind of <mask> animal
aquatic
a shark is a kind of fish & a fish is a kind of aquatic animal -> a shark is a kind of aquatic <mask>
animal
a shark is a kind of aquatic animal & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if <mask> of sharks are found in a place then that place used to be covered by water in the past
fossils
a shark is a kind of aquatic animal & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of <mask> are found in a place then that place used to be covered by water in the past
sharks
a shark is a kind of aquatic animal & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are <mask> in a place then that place used to be covered by water in the past
found
a shark is a kind of aquatic animal & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found in a <mask> then that place used to be covered by water in the past
place
a shark is a kind of aquatic animal & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found in a place then that <mask> used to be covered by water in the past
place
a shark is a kind of aquatic animal & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found in a place then that place <mask> to be covered by water in the past
used
a shark is a kind of aquatic animal & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found in a place then that place used to be <mask> by water in the past
covered
a shark is a kind of aquatic animal & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found in a place then that place used to be covered by <mask> in the past
water
a shark is a kind of aquatic animal & if fossils of an aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found in a place then that place used to be covered by water in the <mask>
past
if fossils of sharks are found in a place then that place used to be covered by water in the past & sharks live in oceans & an ocean is a kind of body of water -> if <mask> of sharks are found in a place then that place used to be covered by oceans in the past
fossils
if fossils of sharks are found in a place then that place used to be covered by water in the past & sharks live in oceans & an ocean is a kind of body of water -> if fossils of <mask> are found in a place then that place used to be covered by oceans in the past
sharks
if fossils of sharks are found in a place then that place used to be covered by water in the past & sharks live in oceans & an ocean is a kind of body of water -> if fossils of sharks are <mask> in a place then that place used to be covered by oceans in the past
found
if fossils of sharks are found in a place then that place used to be covered by water in the past & sharks live in oceans & an ocean is a kind of body of water -> if fossils of sharks are found in a <mask> then that place used to be covered by oceans in the past
place
if fossils of sharks are found in a place then that place used to be covered by water in the past & sharks live in oceans & an ocean is a kind of body of water -> if fossils of sharks are found in a place then that <mask> used to be covered by oceans in the past
place
if fossils of sharks are found in a place then that place used to be covered by water in the past & sharks live in oceans & an ocean is a kind of body of water -> if fossils of sharks are found in a place then that place <mask> to be covered by oceans in the past
used
if fossils of sharks are found in a place then that place used to be covered by water in the past & sharks live in oceans & an ocean is a kind of body of water -> if fossils of sharks are found in a place then that place used to be <mask> by oceans in the past
covered
if fossils of sharks are found in a place then that place used to be covered by water in the past & sharks live in oceans & an ocean is a kind of body of water -> if fossils of sharks are found in a place then that place used to be covered by <mask> in the past
oceans
if fossils of sharks are found in a place then that place used to be covered by water in the past & sharks live in oceans & an ocean is a kind of body of water -> if fossils of sharks are found in a place then that place used to be covered by oceans in the <mask>
past
if fossils of sharks are found in a place then that place used to be covered by oceans in the past & fossils of sharks are found on top of a mountain & the top of a mountain is a kind of place -> the <mask> used to be covered by oceans in the past
mountain
if fossils of sharks are found in a place then that place used to be covered by oceans in the past & fossils of sharks are found on top of a mountain & the top of a mountain is a kind of place -> the mountain <mask> to be covered by oceans in the past
used
if fossils of sharks are found in a place then that place used to be covered by oceans in the past & fossils of sharks are found on top of a mountain & the top of a mountain is a kind of place -> the mountain used to be <mask> by oceans in the past
covered
if fossils of sharks are found in a place then that place used to be covered by oceans in the past & fossils of sharks are found on top of a mountain & the top of a mountain is a kind of place -> the mountain used to be covered by <mask> in the past
oceans
if fossils of sharks are found in a place then that place used to be covered by oceans in the past & fossils of sharks are found on top of a mountain & the top of a mountain is a kind of place -> the mountain used to be covered by oceans in the <mask>
past
marine animals are water animals & marine fossils means fossils of marine animals -> <mask> fossils are fossils of water animals
marine
marine animals are water animals & marine fossils means fossils of marine animals -> marine <mask> are fossils of water animals
fossils
marine animals are water animals & marine fossils means fossils of marine animals -> marine fossils are <mask> of water animals
fossils
marine animals are water animals & marine fossils means fossils of marine animals -> marine fossils are fossils of <mask> animals
water
marine animals are water animals & marine fossils means fossils of marine animals -> marine fossils are fossils of water <mask>
animals
marine fossils are fossils of water animals & marine fossils are found in mountains -> <mask> of water animals are found in mountains
fossils
marine fossils are fossils of water animals & marine fossils are found in mountains -> fossils of <mask> animals are found in mountains
water
marine fossils are fossils of water animals & marine fossils are found in mountains -> fossils of water <mask> are found in mountains
animals
marine fossils are fossils of water animals & marine fossils are found in mountains -> fossils of water animals are <mask> in mountains
found
marine fossils are fossils of water animals & marine fossils are found in mountains -> fossils of water animals are found in <mask>
mountains