PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Ketjenblack is a unique super-conductive carbon black having a surface area of greater than 900 m2 /g.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.fr