Assertion: feather | /r/HasProperty | watkins et al
Facets:
Source sentences:
text: The difference between the surface textures of the limestone in the feathered and unfeathered areas was cited as evidence of the presence of a cement layer around the feathers (Watkins et al.
text: The regularity of the side veins of the feather impressions was claimed to indicate a forgery, since the limestone could not have split so evenly as to break along the length of the feathers (Watkins et al.