Assertion: bird's nest | /r/HasProperty | lined with grass
Facets:
Source sentences:
text: At the back of their burrow home, they build a nest lined with feathers and grass where the female lays her egg.
text: Nests are lined with grass and hairs removed from the fur of their hosts.
text: The nest is lined with materials such as feathers, leaves, snakeskin, and grasses.