PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Metal 141 desirably is gold, or a barrier metal such as nickel which will retard diffusion of gold and copper.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com