PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • What that ???X??? could conceivably be is a thing which I think the UST would not really be keen on telling us.
http://www.w3.org/ns/prov#wasQuotedFrom
  • inquirer.net