PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The most important greenhouse gas is carbon dioxide ??? steadily increasing as a result of burning fossil fuels for energy generation and vehicles.
http://www.w3.org/ns/prov#wasQuotedFrom
  • peters-research.com