The official language, and the one used for most written communication, is Italian. In oral communication Western Lombard (Ticinese) varieties, although receding in favour of Italian (especially in the cities of Lugano, Ascona and Locarno and among the younger generations), are still well preserved. These are further subdivided into local variations, with the northern valleys speaking a dialect more closely aligned with Romansch, Switzerland's fourth official language. There is a certain amount of popular literature (poems, comedies, etc.) in Ticinese, and the national radio and televisions trasmit regularly program in Ticinese (mainly comedies).