premise: Johnnie has only visited Nepal, Maurice has only visited Sweden, Gilbert has only visited Uruguay, Edwin has only visited Bosnia & Herzegovinia, Mario has only visited Namibia, Everett has only visited Cambodia, Cecil has only visited Central African Republic, Samuel has only visited Cuba, Javier has only visited Guinea-Bissau, Warren has only visited Denmark, Chester has only visited Djibouti, Franklin has only visited Kosovo
hypothesis: Samuel didn't visit Haiti