PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Preferably, however, the tube 20 is an alloy consisting of iron, nickel and cobalt which is sold under the trade name Kovar.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com