PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Installation costs consist of 50 cents for inverters that convert the current of the solar modules to the alternating current used by the home's appliances, 75 cents for racks, wires and other installation equipment, $1.25 for labor and $2 for installers' overhead.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wsj.com