PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A fact matches a pattern if the two lists are identical except for the variables, which are preceded by a question mark (?) in the pattern.
http://www.w3.org/ns/prov#wasQuotedFrom
  • lispworks.com