PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The outer electrode material may be any electrically conducting material and preferably is a metal, such as platinum, steel or tungsten.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com