PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • New designs to improve efficiency, such as a solar energy system comprising concentric circles made of thin lenses that focus the sun's rays onto a postage-stamp-sized, high-tech solar cell.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thefabricator.com