premise: Bryan has only visited Sweden, Christian has only visited Kazakhstan, Jim has only visited Djibouti, Kenneth has only visited Israel, Ralph has only visited Yemen, Lance has only visited Romania, Don has only visited Tanzania, Ronnie has only visited Honduras, Clifton has only visited Namibia, Travis has only visited Antigua & Barbuda, Nelson has only visited Senegal, Jack has only visited Italy
hypothesis: Patrick didn't visit Djibouti