PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The plasma torch is formed at area 15.Preferably, the gas used is a mixture of oxygen and hydrogen, or a mixture of oxygen, hydrogen, and air.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com