Assertion: herring gull | /r/CapableOf | develop paler base
Facets:
value: normally
type: DEGREE
value: by means of the winter
type: TEMPORAL
Source sentences:
text: First-winter birds are gray-brown with a darkish tail, a brown rump with darkish bars, darkish outer primaries and pale interior primaries, darkish eyes, and a darkish bill of the American herring gull, which normally develops a paler base by means of the winter.