<prompt> Translate the following text to SwahiliArchaeologists can trace their origins to the builders of the first cities, Harappa and Mohenjodaro, in the Indus valley.  <response>: Wataalamu wa vitu vya kale wanaweza kufuatilia chanzo chao hadi wajenzi wa majiji ya kwanza, Harappa na Mohenjodaro, katika bonde la Indus. 