premise: Thomas has only visited Nicaragua, James has only visited Saint Kitts & Nevis, Armando has only visited United Arab Emirates, Ryan has only visited Tajikistan, Leo has only visited Angola, Kenneth has only visited Paraguay, Guy has only visited Cambodia, Antonio has only visited Hungary, Lee has only visited Azerbaijan, Tommy has only visited Thailand, Troy has only visited Mali, Brent has only visited Tonga
hypothesis: Thomas didn't visit Nicaragua