<prompt> Translate the following text to SwahiliThe once-marshy plain of Kanto is Tokyos hinterland, the region where the feudal warlords set up their military bases and administrative headquarters.  <response>: Eneo la Kanto, ambalo wakati mmoja lilikuwa na mabwawa, ni sehemu ya nyuma ya jiji la Tokyo, eneo ambalo wakuu wa vita wa kifalme waliweka makao yao makuu ya kijeshi na ya kiutawala. 