PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Other variations include extracting elements from the ambient air such as nitrogen or oxygen, as well as other gases, to manufacture supercooled gases or liquids by expansion, and as a result, create the thermal gap to generate the condensate cloud material.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com