PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Our graphics and other materials may be used freely for non-commercial purposes; we just ask that you credit the ???Carbon Mitigation Initiative, Princeton University.???
http://www.w3.org/ns/prov#wasQuotedFrom
  • prbo.org