Assertion: chalcedony's color | /r/HasProperty | gray
Facets:
value: in descending order
type: OTHER
Source sentences:
text: Its colors are bluish, white, or gray.
text: Agate can be of any color, the most frequent colors are (in descending order) gray, white, brown, salmon, red, orange, black, and yellow.
text: Its color is white, gray, blue or some other delicate shade.