PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The difference between CLIPS and Prolog/Datalog is that CLIPS is a production rule system that operates by forward chaining: given a set of facts and rules, it will try to make every possible derivation of new facts and store those in memory.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackoverflow.com