PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However these features provide an extremely powerful toolkit for experts to produce modules and other tools that you can use (without you needing to know about their internal wiring and plumbing).
http://www.w3.org/ns/prov#wasQuotedFrom
  • perlfoundation.org