premise: Floyd has only visited Guinea, Bryan has only visited Denmark, Ted has only visited Peru, Felix has only visited Yemen, Duane has only visited Antigua & Barbuda, Oscar has only visited Eswatini, Jimmie has only visited Colombia, Herbert has only visited Seychelles, Anthony has only visited Netherlands, Warren has only visited Lesotho, Gordon has only visited Madagascar, William has only visited Belarus
hypothesis: Bryan didn't visit Bahrain