PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • According to the Environmental Protection Agency, carbon dioxide, CO2, is a greenhouse gas - a gas that traps heat in the atmosphere.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cnn.com