PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Vitreous china is a mix of several kinds of clay, called ball clay and china clay, silica, and a fluxing agent.
http://www.w3.org/ns/prov#wasQuotedFrom
  • gvpedia.com