<prompt> Translate the following text to SwahiliCitrus fruit became the regions principal cash crop around the turn of the century when grain and the 17th-century windmills of Cape San Antonio were abandoned.  <response>: Matunda ya machungwa yalikuwa mazao makuu ya eneo hilo wakati nafaka na viwanda vya upepo vya karne ya 17 vya Cape San Antonio vilipoachwa. 