Assertion: martin's nest | /r/HasProperty | lined with grass
Facets:
Source sentences:
text: Nests are built out of mud and lined with feathers and grass.
text: Nest is made of weeds, leaves, twigs, lined with softer materials like feathers, grass, animal hair, moss.
text: The nest is made up of twigs, bark strips, vine leaves, rootlets, paper, and lined with vines, grass and hair.