PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Inert gases referred to include helium, methane, carbon dioxide, flue gas, stack gas and other gases which are noncondensible in character and which do not interact either with the formation matrix or the oil or other earth materials contained in the matrix.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es