PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Another deficiency of current systems exemplified utilizing the example of audio communication is that since telephony and WAN based audio communications are separate the user may not be available, i.e. one of his devices indicates that it is busy while another audio devices he has is actually free and ready to receive audio communications.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com