PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • They estimated costs for both types of plants over a wide range of fuel prices and under both existing and pending emissions standards, and developed a ratio to express the cost differences between natural gas and coal.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wvgazette.com