PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This invention relates generally to communication systems such as, but not limited to, encrypted radiotelephone communication systems, and is more particularly directed toward a method for allowing an encrypted telephone system communicating with an encrypted radio system to advantageously employ telephone lines with a relatively poor channel signal-to-noise ratio.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com