Assertion: feather | /r/HasProperty | derived
Facets:
value: usually
type: DEGREE
value: from the same dinosaur species
type: OTHER
value: from a pennaraptoran dinosaur18
type: OTHER
value: from tails
type: OTHER
Source sentences:
text: The feathers used as pillow filling are usually derived either from the wings or tails of geese or ducks.
text: This feather is probably derived from a pennaraptoran dinosaur18.
text: However, these two feathers are possible to be derived from the same dinosaur species given that feathers are highly variable in morphology across the avian body.