PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Noble gases, such as helium or argon, and carbon dioxide, but especially nitrogen, and mixtures of such gases may be used as the inert gases, i.e. gases which do not react under the particular process conditions required.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es