premise: Craig has only visited Mongolia, Joshua has only visited Kenya, Micheal has only visited Namibia, Andy has only visited Uruguay, Ken has only visited Bhutan, Daryl has only visited Brunei, Morris has only visited New Zealand, Fred has only visited Zambia, Darryl has only visited Ukraine, Rick has only visited Malaysia, Jimmie has only visited Samoa, Allen has only visited Comoros
hypothesis: Daryl didn't visit Czech Republic