PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Saving energy helps the environment because most of the electricity we use is produced by fossil fuels like coal, oil and natural gas.
http://www.w3.org/ns/prov#wasQuotedFrom
  • epa.gov