PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The field of petroleum engineering is all about the exploration and production of various petroleum based hydrocarbons such as natural gas, crude oil and other important sources of energy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • toppetroleumengineeringschools.com