PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Run file permissions as tight as possible, avoid write access to PHP scripts for the Apache user, this prevents a running script from modifying itself or other scripts on the same site/server.
http://www.w3.org/ns/prov#wasQuotedFrom
  • serverfault.com