PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • If we have a retain property, could not we simplify this by simply saying self.uiElement = nil; in all places we want to release, since it is a retain property it should actually release it properly as well as set it to nil with no issues, one of the advantages of retain properties.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackoverflow.com