PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Not in most functional languages, but in logic programming or relational programming, most functions you define are in fact not functions but relations", and these can be used in both directions.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackoverflow.com