PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Approximately 90 billion tons come from biologic activity in earth's oceans and another 90 billion tons from such sources as volcanoes and decaying land plants.Quoting Neapolitan:Not sure where your data is coming from.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wunderground.com