PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Given that the Apache error log is now the go-to place for troubleshooting other types of problems, putting clues there probably wouldn't hurt.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sourceforge.net