PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Off-gas is at least partially formed by volatilization and reaction of components of the liquid and gaseous feed to form gases, such as carbon monoxide and, optionally, carbon dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com