Assertion: cetacean | /r/HasAspect | a layer of fat
Facets:
value: under the skin
type: LOCATION
Source sentences:
text: They have a layer of fat, or blubber, under the skin to maintain body heat in cold water.
text: They have a layer of fat, or blubber, under the skin to maintain body heat in cold water.
text: They have a layer of fat, or blubber, under the skin to maintain body heat in cold water.