"Oliver Reginald Tambo (27 October 1917 \u2013 24 April 1993) was a South African anti-apartheid politician and revolutionary who served as President of the African National Congress (ANC) from 1967 to 1991."@en . "Tambo, Oliver Reginald"@en . . . "1993-04-24Z"^^ . . . "Oliver Tambo"@en . . . . "1917Z"^^ . . . "Oliver Reginald Tambo"@en . "1917-10-27Z"^^ . "1993Z"^^ . "South African politician" . .