<prompt> Yakha inguqulo eyinkimbinkimbi yalesi sigwebo Izinga eliqondile alikaziwa, nakuba amanzi ayeseduze nalawo ezikhukhula zika-1972.  <response>: Yiqiniso, inguqulo eyinkimbinkimbi yomusho ithi Izinga eliqondile alikaziwa, kodwa ipaki lizovalwa ngempelasonto elandelayo ngenkathi kwenziwa imisebenzi emikhulu yokulungisa nokuhlanza. 