Assertion: winged petrel | /r/HasAspect | a grey
Facets:
value: with marking across the wings
type: OTHER
Source sentences:
text: It has a grey back and wings, with a dark "W" marking across the wings.
text: This long-winged petrel has a grey back and wings, with a dark "W" marking across the wings, and a grey upper tail.
text: It has a grey back, grey wings with a dark "W" marking across them, and a grey upper tail.