PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Although the United States and other industrialized countries have made strenuous efforts to diversify their import sources, the Middle East, and specifically the Persian Gulf region, remains the world???s prime oil province.
http://www.w3.org/ns/prov#wasQuotedFrom
  • energybulletin.net