PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • heres have been used for years in light-weight filler material, insulation, abrasives and other uses.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nanotech-now.com