<prompt> Translate the following text to SwahiliRooms 18-20 move on through the Archaic period to the Classical, Hellenistic, and Roman eras with colossal marble statuary gracing the gallery space here.  <response>: Chumba 18-20 ni sehemu ya kipindi cha kale hadi enzi za kale, Hellenistic, na Kirumi, na sanamu kubwa za marumaru zinashangaza nafasi ya maonyesho hapa. 