About: http://webisa.webdatacommons.org/98379823

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	here is Cult Pens' record: It comes with a 3.15mm thick soft 7B graphite lead and can write on almost any material including wood, metal, paper, plastic, glass (using red lead) or x-rays (using white lead).
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com