PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This invention relates to a method for reliably sorting articles made of plastic materials, particularly PET and PVC plastics, which are closely similar in density and appearance.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com