Assertion: canvasback's food | /r/HasProperty | eaten by canvasback
Facets:
Source sentences:
text: In the late 1930s, studies showed that four-fifths of the food eaten by canvasbacks was plant material.
text: In the late 1930s, studies showed that four-fifths of the food eaten by canvasbacks was plant material.
text: In the late 1930s, studies showed that four-fifths of the food eaten by canvasbacks was plant material.