PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Alternatively, the thru-proxy tag may be placed in the data or other portion of the message instead of the header portion.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com