PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Graphite is a crystalline form of carbon wherein the atoms are bonded in flat layers (basal planes) with weaker bonds between the layers.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com