Assertion: petrel's underside | /r/HasProperty | white
Facets:
value: mostly
type: DEGREE
value: with dark grey underwings
type: OTHER
value: on the body
type: LOCATION
value: with a dark longitudinal central band
type: OTHER
Source sentences:
text: The White-faced undersides are white with dark outlined underwings.
text: The underside is mostly white, which turned dark grey at underwings.
text: The undersides are mostly white, with a thin dark patchy line on the leading edge of the outer underwing.
text: The underside is mostly white but with a thin dark line on the leading edge of the outer under-wing.
text: The underside of the wings and body are white with a dark edge to the wing that terminates in a diagonal bar.
text: The underside is mostly white on the body but with dark grey underwings.
text: The underside is mainly white with a dark longitudinal central band that is not so easy to see at sea.
text: Two species have different plumage entirely, Hornby's storm petrel, which has white undersides and facial markings, and the fork-tailed storm petrel, which has pale grey plumage.