PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Lighting accounts for 19% of electricity use worldwide, and using the most efficient lighting, such as CFLs or LED lighting can reduce electricity use through lighting by up to 90%, potentially saving ??120 a year per household.???Britain is leading the way in getting rid of energy-guzzling light bulbs and helping consumers reduce their carbon footprint.
http://www.w3.org/ns/prov#wasQuotedFrom
  • energy.gs