PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • \4\ The NYMEX is a designated contract market that offers futures and option contracts on a wide range of energy products, including crude oil, refined petroleum products, and natural gas.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cftc.gov