PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The principal reason that consumers do not buy the most energy-efficient appliances is because the improved design and insulation increase the upfront costs.
http://www.w3.org/ns/prov#wasQuotedFrom
  • earth-policy.org