PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Quadrics are a way to create simple shapes, such as spheres or cylinders, from their maths equations.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikibooks.org