Assertion: graphite pencil | /r/CapableOf | range in hardness
Facets:
value: to 9b
type: OTHER
value: from 9h
type: TEMPORAL
value: (extremely hard)
type: OTHER
Source sentences:
text: Ranging in hardness from 9H (extremely hard) to 9B (very soft), graphite pencils are purchased singly or in sets from a wide range of manufacturers.