PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • U.S. Pat. No. 6,234,812 describes a retractable power and communication outlet for mounting on a work surface such as a table or desk.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com