PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Citing studies by his group, Dumaual said coal-fired power plants emit hazardous gases, such as carbon dioxide, carbon monoxide, nitrous oxide and sulfur oxide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • inquirer.net