<prompt> Translate the following text to EnglishKaskazini magharibi mwa Diwan-i-Khas, Moti Masjid Msikiti wa Lulu ni mchango mmoja kwa Ngome na mrithi wa Shahjahan, Aurangzeb.  <response>: To the northwest of the Diwan-i-Khas, the Moti Masjid Pearl Mosque is the one contribution to the Fort by Shahjahans successor, Aurangzeb. 