premise: Bill has only visited Ecuador, Wesley has only visited The Bahamas, Eddie has only visited Trinidad & Tobago, Jeffrey has only visited Iceland, Dennis has only visited Lithuania, Sidney has only visited Kosovo, Brent has only visited Uzbekistan, Gordon has only visited El Salvador, Allen has only visited Tajikistan, Isaac has only visited Libya, Greg has only visited Burundi, Mitchell has only visited Bulgaria
hypothesis: Brent didn't visit Saint Kitts & Nevis