<prompt> Translate the following text to SwahiliLa Porte Noire, a Roman arch on the Rue de la Convention, leads you to the 12th-century Cathedrale Saint-Jean.  <response>: La Porte Noire, mnara wa Roma kwenye Rue de la Convention, unakuongoza kwenye Kanisa Kuu la Saint-Jean la karne ya 12. 