Assertion: amorphous graphite | /r/CapableOf | range in purity
Facets:
value: from 70 to 90 percent
type: OTHER
value: according to riddle
type: OTHER
value: typically
type: DEGREE
Source sentences:
text: According to Riddle, amorphous graphite that is marketable today typically ranges in purity from 70 to 90 percent.