PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The preferred Photon Production System is truly a Clean Energy System because, except for the generation of O2 and H2 gases, it does not produce any carbon or nitrogen based gases, or other harmful gases, as its combustion byproducts.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com