PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • fossil fuel: a naturally occurring carbon or hydrocarbon fuel, such as natural gas, propane and oil, formed by the decomposition of prehistoric organisms.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nachi.org