PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ???CIGS??? stands for the copper, indium, gallium and selenium elements comprising chalcopyrite, one of the most promising compounds for advanced solar panels.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newenergyandfuel.com