PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • With respect to the refrigerant for air conditioners, dehumidifiers, refrigerators, and the like, there is a strong demand for using natural refrigerant carbon dioxide (CO2) which is an alternative to the currently used materials, i.e. chlorofluorocarbon which is responsible for global environmental problems such as destroying the ozone layer.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com