Assertion: sea otter's guard hair | /r/CapableOf | keep dense underfur layer
Facets:
Source sentences:
text: The fur consists of long, waterproof guard hairs and short underfur; the guard hairs keep the dense underfur layer dry.
text: The fur consists of long, waterproof guard hairs and short underfur; the guard hairs keep the dense underfur layer dry.