Assertion: petrel's tail | /r/HasProperty | dark
Facets:
value: noticeably
type: DEGREE
value: with a white forehead
type: OTHER
value: with face
type: OTHER
Source sentences:
text: Tail is long, dark, and wedge-shaped; underwings show broad dark margins.
text: Gould's petrel has long narrow wings, a short rounded tail and the head is noticeably dark, with a white forehead and face.