PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Thus, the source material is a solid sample of the same material which is deposited to form the radiopaque or wear resistant coating, such as platinum, tungsten, iridium, tantalum (for radiopacity), or carbide or a tungsten carbide (for wear resistance).
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com