premise: Joel has only visited Palestine, Alex has only visited Burundi, Edward has only visited Finland, Gregory has only visited Somalia, Jack has only visited Comoros, Jeffery has only visited Uzbekistan, George has only visited United States, Allan has only visited Republic of the Congo, Corey has only visited Luxembourg, David has only visited Côte D'ivore, Darryl has only visited Netherlands, Scott has only visited Libya
hypothesis: Allan didn't visit Dominican Republic