PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A bit of background: Nigeria exports about 2.5 million barrels of crude oil a day, but is then forced to buy back petrol, diesel and other refined fuels from non-oil producing countries, such as Spain, at a far higher price...Two thirds of Nigeria's population is still living on less than $1 a day...
http://www.w3.org/ns/prov#wasQuotedFrom
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