PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • his proposal that a model is useful if it tells you things about the real system, assumes there is such a thing as a 'real system'. how are we to know that we are studying a real system.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wolframscience.com