PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Because C02 is a greenhouse gas, and as such can trap some of the sun's energy in the earth's atmosphere, these increasing C02 concentra- -tions are predicted to lead to global warming, and also alter precipitatio patterns around the world.
http://www.w3.org/ns/prov#wasQuotedFrom
  • usda.gov