PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These so-called ???conflict minerals??? include tin, tantalum, tungsten and gold, and are regularly found in gadgets we use every day, such as laptops, DVD players and cell phones.
http://www.w3.org/ns/prov#wasQuotedFrom
  • everence.com