PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Oil and gas development in deep water is an essential part of the U.S. and global energy future, said Halliburton's chief operating officer, Jeff Miller.
http://www.w3.org/ns/prov#wasQuotedFrom
  • xinhuanet.com