PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • With some noise and pollution, a small portable inverter generator can do that at way lower investment and running cost of $1 / kWh give and take, including fuel, oil, maintenance and depreciation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cleantechnica.com