PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These gases include water vapor, dioctyl phthalate, silicone, chlorine, hydrogen sulfide, nitrogen dioxide, mineral acid gases, hydrocarbon compounds and any other gas that can oxidize or cause corrosion of any critical element or that can condense onto critical elements so as to effect their operation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com