PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A binary relation, hereafter referred to simply as a relation, is a binary proposition defined on any selection of the elements of two sets.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikibooks.org