premise: Clyde has only visited Saudi Arabia, Travis has only visited Ethiopia, Zachary has only visited Israel, Glen has only visited South Korea, Roy has only visited Paraguay, Christopher has only visited Algeria, Roberto has only visited Eritrea, Allen has only visited Laos, Wesley has only visited Poland, Nathan has only visited Saint Kitts & Nevis, Jerome has only visited Liechtenstein, Brent has only visited Andorra
hypothesis: Glen didn't visit Canada