PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In 2001, several oil companies, including BP, Caltex, Shell, and Total, signed the charter, which aims to have black-controlled companies owning 25 percent of the country???s oil sector by 2011.
http://www.w3.org/ns/prov#wasQuotedFrom
  • energytribune.com