<http://webisa.webdatacommons.org/153171402>	<http://www.w3.org/ns/prov#value>	"???Statistics say Nigeria is the richest country in Africa, with an average annual per capita income of 1,200 pounds, great wealth in most of the continent." .
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<http://webisa.webdatacommons.org/153171402>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<vanguardngr.com> .