Assertion: penguin's feather | /r/HasProperty | black
Facets:
Source sentences:
text: Penguins have black and white feathers and they waddle when they walk.
text: They have black and white feathers which give them a good camouflage and keep them warm in the icy cold weather.
text: Down feathers of different species may be white, gray, black, or brown.
text: Feathers of the head and back are black and sharply delineated from the white belly, pale-yellow breast and bright-yellow ear patches.