Assertion: stilt's wing | /r/HasProperty | hidden within the plumage
Facets:
Source sentences:
text: Kiwis are unusual in many respects: the vestigial wings are hidden within the plumage; the nostrils are at the tip (rather than the base) of the long, flexible bill; the feathers, which have no aftershafts, are soft and hairlike; the legs are stout and muscular; and each of the four toes has a large claw.