PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Although purchasing royalites & production is an option, the return on investment will be much lower than you???ll find possible when drilling new wells in successful oil & gas fields.
http://www.w3.org/ns/prov#wasQuotedFrom
  • oilandgasinvesting.com