PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In a question and answer environment, for example, the content of an open assertion can be set to what the user types in response to a question interrogative.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com