PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Well, $ref is a reference a scalar stored at 1000, so to get the value stored at that location we need to 'dereference' $ref - and we do this by the following code
http://www.w3.org/ns/prov#wasQuotedFrom
  • perlmonks.org