Assertion: black vulture's wing | /r/HasProperty | barn door wings
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: The wings, with serrated leading edges, are held straight or slightly arched in flight and are broad, sometimes referred to as "barn door wings".
text: The wings, with serrated leading edges, are held straight or slightly arched in flight and are broad, sometimes referred to as "barn door wings".