premise: Micheal has only visited Bosnia & Herzegovinia, Herbert has only visited Eswatini, Shawn has only visited Jordan, Gene has only visited Fiji, Reginald has only visited Mauritius, Donald has only visited Timor-Leste, Harry has only visited Panama, Leon has only visited Gabon, Juan has only visited Republic of the Congo, Dustin has only visited Niger
hypothesis: Juan didn't visit Republic of the Congo