PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Now spilling 150,000 barrels a day according to some estimates ??? not BP's ??? the nightmare scenario that the entire oil reserve may break open is now increasingly looking like a reality. [EDIT: official figure now around 40,000 barrels per day.] The Oil Drum ??? a website for oil industry geologists, engineers, technicians and other experts ??? carries this comment by dougr.
http://www.w3.org/ns/prov#wasQuotedFrom
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