premise: Charles has only visited Bulgaria, Lewis has only visited Timor-Leste, Harvey has only visited Cabo, Bobby has only visited Libya, Clinton has only visited San Mmarino, Ivan has only visited Yemen, Clayton has only visited Laos, Willard has only visited Brunei, Sam has only visited Vanuatu, Eric has only visited Kosovo, Carl has only visited Namibia, Jesus has only visited Egypt
hypothesis: Bobby didn't visit Saudi Arabia