PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The recycling industry engages in the selective recovery of polymer materials, for example such as polyethylene (PE), polypropylene (PP), acrylonitrile-butadiene-styrene (ABS), polystyrene (PS), polyvinyl chloride (PVC), polyurethanes (PU) and others.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com