PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It is generally more expensive to heat a home using electricity rather than natural gas or other sources of fuel.
http://www.w3.org/ns/prov#wasQuotedFrom
  • energyusecalculator.com