PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Accordingly, it is often desirable to send the original messages in a secure manner which addresses one or more of such concerns as is well known in the relevant arts. [0005] One approach for securely sending messages is by using a key (???shared key???), which is shared by both a sender system and a receiver system.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com