premise: Jared has only visited Hungary, Gordon has only visited Philippines, Harvey has only visited Eswatini, Shawn has only visited Dominican Republic, Scott has only visited Pakistan, Alex has only visited South Africa, Christian has only visited Rwanda, Adrian has only visited Panama, Ralph has only visited Burundi, Lester has only visited Sri Lanka, Don has only visited Jordan, Curtis has only visited Macedonia
hypothesis: Nathaniel didn't visit Sri Lanka