PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Note that a lot of programmers expect that applying the == operator to any class type other than string is a shorthand for checking reference-equality.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackoverflow.com