Assertion: seal | /r/HasProperty | mammal
Facets:
Source sentences:
text: Seals and their relatives the sea lions and walruses are mammals whose four walking limbs are replaced with flippers, which make them slow and clumsy on dry land.
text: Seals are mammals and must breathe air.
text: Although seals live primarily in the water, they are mammals.
text: All seals are mammals and they have the same patterns of behavior for breeding and for feeding.