PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • While it may be desirable to fabricate the counterelectrode from a noble metal such as platinum, palladium, or gold, these materials are costly and thus fabricating solid counterelectrodes from such metals is impractical.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com