PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This massive sudden rise in methane levels in turn caused an increase in carbon dioxide, since methane reacts with oxygen to form carbon dioxide and water, and is especially reactive in the presence of a superheated nickel catalyst.
http://www.w3.org/ns/prov#wasQuotedFrom
  • geoengineeringwatch.org