PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Conventional fluorescent lights that were previously thought to be an excellent source of light for fish tanks have been found harmful in a number of ways, including the fact that they contain mercury.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ledlights.org