PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • MESSAGE may also be defined by another user, such as a supervisor or administrator, to send a message to the user identified by USER ID. One of ordinary skill in the art will readily appreciate that this aspect of the present invention provides a flexible communication channel between remote users and central management that may be readily adapted to a variety of uses.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com