PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Although carbon dioxide is a global-warming gas, conventional refrigerants, called hydrofluorocarbons, cause about 2,000 times more global warming than the same quantity of carbon dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • purdue.edu