PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The House plan included the so-called cap-and-trade system in which a price is set for greenhouse gas emissions such as carbon dioxide and polluters can obtain and trade credits for emissions over a set threshold.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cnn.com