PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Cracking & ethene hydration: Crude oil, from which ethene is obtained by cracking, will eventually run out, and oil is a non-renewable resource, so not sustainable in the distant future.
http://www.w3.org/ns/prov#wasQuotedFrom
  • docbrown.info