Assertion: ostrich's feather | /r/HasProperty | serve as insulation
Facets:
value: as insulation
type: MANNER
Source sentences:
text: The feathers lack the tiny hooks that lock together the smooth external feathers of flying birds, and so are soft and fluffy and serve as insulation.
text: The feathers lack the tiny hooks that lock together the smooth external feathers of flying birds, and so are soft and fluffy and serve as insulation.
text: The feathers lack the tiny hooks that lock together the smooth external feathers of flying birds, and so are soft and fluffy and serve as insulation.