PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • To achieve these goals, it is necessary that doors, gates, passageways and other entry or exit areas be protected against unauthorized entry by perpetuators using tailgating and reverse entry methods. [0007] Prior art access control systems have a long history starting with human guards and various types of mechanical locks.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com