PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In time, natural gas prices should eventually begin to rise, due to both domestic and international demand, and overall gas supply falling due to the maturing of wells in the Marcellus, Haynesville and other shales.
http://www.w3.org/ns/prov#wasQuotedFrom
  • eaglefordshaleblog.com