PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This chemical insulation agent (polyurethane and isocyanine) contain hazardous chemicals such as benzene and toluene.
http://www.w3.org/ns/prov#wasQuotedFrom
  • insulation4less.com