PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Energy efficiency standards enacted between 1988 and 1994 were found to have provided energy efficiency gains in home heating technologies and major home appliances, such as refrigerators, clothes washers and dryers resulting in a 31 percent reduction in energy usage per household.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sparkenergy.com