PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • After 9-11, we significantly upped the security at airports and on airplanes, including arming pilots and placing armed marshals on aircraft.
http://www.w3.org/ns/prov#wasQuotedFrom
  • japantoday.com