PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I do not know all that much about the technical details of solar cells, but it would seem that thickness of materials is a factor in their performance.
http://www.w3.org/ns/prov#wasQuotedFrom
  • democraticunderground.com