PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In addition, because of the low weight of the paper or plastic substrate compared to conventional glass or other materials, ???we think we can fabricate scalable solar cells that can reach record-high watts-per-kilogram performance.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cleantechies.com