PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These include electronic mail (e-mail), letters, memos, contracts and images A digital signature is a data item, which accompanies a electronic document, and which can be used to ascertain both the originator of the message and the fact that the message has not been modified since it left the originator.
http://www.w3.org/ns/prov#wasQuotedFrom
  • tendernews.com