PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Kyoto Protocol, which entered into force in 2005, established a market-based mechanism to allow developed countries with binding emissions targets to reduce greenhouse gases such as carbon dioxide, methane, carbon tetrafluoride, trifluoromethane, and nitrous oxide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cfr.org