PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Some plastics, such as celluloid and Bakelite, had found industrial and household uses, but others were shoddy and unreliable.
http://www.w3.org/ns/prov#wasQuotedFrom
  • chemheritage.org