PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This is by no means an airtight argument, but it???s sound enough ??? i.e., certainly worthy of more than 3 percent credence ??? that really someone or other ought to think outside the box and give it a try.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thinkprogress.org