"Chad Civilization (culture or period)"@en . . . "So (ancient West African culture or period)"@en . "Sai (ancient West African culture or period)"@en . . "2015-03-04T13:29:30"^^ . "Imperio Sao"@es . "300015833" . "Sao-rijk"@nl . "1988-01-01T00:00:00"^^ . "Sao"@es . "Sao Empire (culture or period)"@en .