PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Carbon dioxide mapped from 2003-2005 Although carbon dioxide is the most important greenhouse gas, methane molecules trap heat with an efficiency that is 20 times larger than that of a molecule of carbon dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • esa.int