PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In some embodiments, optionally, a content item may be selectively inserted into, or appended to, a SMS or MMS or IM or Email message or other message (e.g., textual message, audio clip, video clip, image, or the like) sent by a first user to a second user.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.ca