PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The four related problems presented in this article provide examples of ways to include justifications of interesting mathematics in courses taught before a geometry course.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nctm.org