Assertion: warthog's skin | /r/HasProperty | black
Facets:
value: usually
type: DEGREE
Source sentences:
text: The skin is gray or black (or yellowish or reddish, if the warthog has been wallowing in mud).
text: Bristles are scattered throughout the warthog’s body, and their skin is usually gray or black.
text: The skin is gray or black (or yellowish or reddish, if the warthog has been wallowing in mud).