PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Metallic inks ??? formulated with a wide variety of conductive materials such as copper, silver, gold, nickel and cobalt ??? would be used.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org