<prompt> Translate the following text to SwahiliThe rafts are made of bamboo from the surrounding countryside and can be used for only four months before they have to be replaced.  <response>: Matofali hayo hutengenezwa kwa mianzi inayopatikana katika maeneo ya mashambani na yanaweza kutumiwa kwa miezi minne tu kabla ya kubadilishwa. 