PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I realize that the distinction between strings with and without tags is a bit confusing, and it is a problem in general for other functions as well.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sourceforge.net