PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These explorations have been fraught with difficultly, most of the models are unstable and predict universes that end in singularities sometime in the past.
http://www.w3.org/ns/prov#wasQuotedFrom
  • arstechnica.com