PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Heretofore, for computer systems, especially microcomputers, only limited and expensive means existed to prevent loss of data or computational function when there was a loss of AC (commercial or utility company) power to the computer's own primary or main power supply.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com