PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Nuclear power is an option, but it takes years to get a nuclear plant approved, built and in service.Coal and natural gas are necessary.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org