Assertion: pencil | /r/HasProperty | marked hb
Facets:
Source sentences:
text: Historically, pencil makers also use combinations of letters to tell us about the graphite — a pencil marked “HB” is hard and black, a pencil marked “HH” is very hard, and a pencil marked “BBB” is really, really black!
text: Historically, pencil makers also use combinations of letters to tell us about the graphite — a pencil marked “HB” is hard and black, a pencil marked “HH” is very hard, and a pencil marked “BBB” is really, really black!
text: HH” is very hard, and a pencil marked “HHBBB” is very hard and really, really black!
text: Historically, pencil makers also use combinations of letters — a pencil marked “HB” is hard and black; a pencil marked “