PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It may not be enforced by judicial action; however, whatever has been freely performed in compliance with a natural obligation may not be reclaimed, and a contract made for the performance of a natural obligation is ONEROUS. (See CONVENTIONAL OBLIGATION; REPETITION.) An example of a natural obligation is an obligation that has been extinguished by PRESCRIPTION or discharged in bankruptcy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • lawin.org