PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • With such a definition, d's heading need not be R's heading and it is possible to delete unambiguously, non-arbitrarily, from exactly one operand of a join provided that the heading of d is a subset of the heading of exactly one of the join operands.It is not clear what your operator is.
http://www.w3.org/ns/prov#wasQuotedFrom
  • dbdebunk.com