PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Current heliostat practice is to build with stiff and lightweight materials such as steel, aluminum and some engineering polymers.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freshpatents.com