<prompt> Translate the following text to EnglishNgazi iliyo karibu na chumba cha kiti cha enzi inaongoza kwenye kile ambacho Evans alikiita piano nobile, ghorofa ya juu ya mrengo wa magharibi.  <response>: A staircase by the throne room leads to what Evans christened the piano nobile an upper floor of the west wing. 