Assertion: male ostrich | /r/HasAspect | female ostriches
Facets:
Source sentences:
text: Male ostriches have black feathers and female ostriches have gray and brown feathers.
text: Male ostriches have black feathers and female ostriches have gray and brown feathers.
text: Male ostriches have black feathers and female ostriches have gray and brown feathers.
text: Ostriches have small head; male ostriches have black feathers and female ostriches have brown or grey feathers.