PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Methane is very efficient at this, and other greenhouse gases such as carbon dioxide, while less effective, also absorb infrared radiation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • usra.edu