PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The oxidizing agent is oxygen or a gas containing oxygen such as air or synthetic air, no more than the minimum amount necessary being used to maintain the reaction of the above-mentioned partial pressure of O2 (less than 20 Kg/cm2), and no more than the gas necessary should be used as a replacement.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com