PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The circuit board on the phone can be made of copper, gold, lead, zinc, beryllium, tantalum, coltan, and other raw materials which require significant energy to mine and manufacture.
http://www.w3.org/ns/prov#wasQuotedFrom
  • celsias.com