Assertion: stork's plumage | /r/HasProperty | grey
Facets:
value: usually
type: DEGREE
Source sentences:
text: The feathers of the herons are soft and the plumage is usually blue, black, brown, grey, or white, and can often be strikingly complex.
text: They are related to waxwings and like that group, have soft silky plumage, usually gray or pale yellow.