About: http://webisa.webdatacommons.org/254434176

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	graphite - A soft black mineral substance, a form of carbon, available in powder, stick, and other forms.
http://www.w3.org/ns/prov#wasQuotedFrom	arthistoryarchive.com