premise: Ruben has only visited Lebanon, Nathan has only visited Ireland, Antonio has only visited Belarus, Chester has only visited Burundi, Ivan has only visited Spain, Fernando has only visited El Salvador, Paul has only visited São Tomé & Prícipe, Freddie has only visited United States, Clarence has only visited Dominican Republic, Mario has only visited Equatorial Guinea, Alvin has only visited Kuwait, Hugh has only visited Sierra Leone
hypothesis: Louis didn't visit Spain