premise: Dwayne has only visited Malaysia, Timothy has only visited Iceland, Juan has only visited Federated States of Micronesia, Glenn has only visited Turkey, Roger has only visited Guatemala, Larry has only visited Liberia, Brian has only visited Romania, Pedro has only visited El Salvador, Harry has only visited Croatia, Ronnie has only visited Guyana, Jacob has only visited Austria, Bruce has only visited South Korea
hypothesis: Brian didn't visit Romania