PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Again, natural gas is mostly methane, and some 86 times (to as much as 105 times) better at trapping heat than carbon dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thinkprogress.org