PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These contents are any refrigerant for use in cooling applications; examples of such refrigerants are freon 12 as well as other types of freon, ammonia, ethane, propane, sulphur dioxide, carbon dioxide, methyl chloride and other refrigerants.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com.au