PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • At last, wellbore stability is a concern not only while drilling but, also, during the production period under variable conditions of flow rates and pressures.
http://www.w3.org/ns/prov#wasQuotedFrom
  • dea-global.org