PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Further, the engine of all this crop growth is petroleum-based fertilizer, and oil is a finite resource whose production peak could be happening now, Bartlett said. (More sanguine forecasters estimate global peak oil production in 2035.)
http://www.w3.org/ns/prov#wasQuotedFrom
  • energybulletin.net