PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Midstream firms are spending billions of dollars on gas-processing plants, fractionators, pipelines, storage facilities, shipping terminals, and other infrastructure that enable the shale gas revolution to spark a petrochemical renaissance.
http://www.w3.org/ns/prov#wasQuotedFrom
  • chemweek.com