Assertion: cetacean's layer | /r/CapableOf | keep warm
Facets:
value: in the cold water
type: LOCATION
Source sentences:
text: Dolphins have a thick layer of fat called blubber beneath their skin to keep warm.
text: They have a layer of fat, or blubber, under the skin to keep warm in the cold water.
text: They have a layer of fat, or blubber, under the skin to keep warm in the cold water, and, other than the walrus, all species are covered in fur.