PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The pressurized fluid can be selected not only from substances which are gaseous at room temperature such as nitrogen gas, carbon dioxide gas, air and helium gas but also from gases liquefied under high pressure.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com