PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This may be true of Halogen, Incandescent and CFL's (compact fluorescent lamps) where toxic substances such as Mercury and Lead are used in their production.
http://www.w3.org/ns/prov#wasQuotedFrom
  • greenplanetled.co.uk