PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Demand and completion services and pressure pumping in particular is improving and the market maybe tight enough to support limited price increases.
http://www.w3.org/ns/prov#wasQuotedFrom
  • seekingalpha.com