PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The seventh aspect of the invention addresses the problem that it can be difficult to determine exactly where sound is directed or focussed and there is a requirement for an intuitive method which allows an operator to control (with feedback)
http://www.w3.org/ns/prov#wasQuotedFrom
  • patents.com