Assertion: canvasback's head | /r/HasProperty | white
Facets:
Source sentences:
text: Males in winter are mostly white and black: the head is white with a large dark patch on the neck.
text: Male: Black head, white side patch, black back, red-brown sides, white breast with a black stripe and yellow eyes.
text: Male: Black head, white side patch, black back, red-brown sides, white breast with a black stripe and yellow eyes.