PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Porous sedimentary formations penetrated by the rock bit contain fluids such as oil, gas or salt water.
http://www.w3.org/ns/prov#wasQuotedFrom
  • arabsbook.com