PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The greenhouse effect is caused by gases such as carbon dioxide, methane and nitrous oxide, which accumulate in the atmosphere and trap solar radiation, thus making the planet warmer than it otherwise would be.
http://www.w3.org/ns/prov#wasQuotedFrom
  • gcrio.org