Assertion: granite's color | /r/HasProperty | black
Facets:
value: usually
type: DEGREE
value: because of its composition
type: CAUSE
Source sentences:
text: The most common colors of granite are white, pink, yellow, grey, and black, primarily because of its composition.
text: Common colors are black, grey, white, yellow or brown.
text: The seven colors of Haft Rang tiles were usually black, white, ultramarine, turquoise, red, yellow and fawn.