PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The President's House is a brick and steel structure of partial walls with no doors and no roof ??? it is open to the public day and night.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ushistory.org