PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The organizations viewed them as necessary as electronic devices often rely on minerals such as tin and tantalum, which are mined in Central Africa.
http://www.w3.org/ns/prov#wasQuotedFrom
  • appleinsider.com