PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This occurs when the greenhouse gases such as carbon dioxide, methane, nitrous oxide and water vapour trap the light and heat coming from the sun in the atmosphere of the earth.
http://www.w3.org/ns/prov#wasQuotedFrom
  • earthfriendlymomma.com