PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • On at least the first two of these issues, there is an existing solution that is as easy as pie, satisfies all of the substantive concerns involved plus several other problems, and has already been shown to work in other health-care systems.
http://www.w3.org/ns/prov#wasQuotedFrom
  • economist.com