PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • @senderle: it is also my understanding that this is the only test that is fully reliable, in the sense that it is not an approximation and that it does not rely on unproven-but-widely-believed assumptions (such as the Riemann hypothesis).
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackoverflow.com