premise: Ruben has only visited India, Melvin has only visited Indonesia, Dave has only visited Federated States of Micronesia, Casey has only visited Bhutan, Ricky has only visited Cyprus, Jack has only visited Moldova, Andy has only visited South Korea, Ramon has only visited Switzerland, Craig has only visited Dominican Republic, Jorge has only visited Azerbaijan, Kirk has only visited Solomon Islands, Bryan has only visited Togo
hypothesis: Ricky didn't visit Thailand