<prompt> Translate the following text to EnglishNyumba zao zenye viunzi, zenye nyuso za kijivu na nyeupe nambari 15-17 zilijengwa kuanzia karne ya 13 hadi ya 15.  <response>: Their arcade houses, with gray-and-white striped facades numbers 15 17 were built from the 13th to 15th century. 