<prompt> Pedzisa mutsara unotevera: Kuongorora tsaona huru dzinosanganisira nzvimbo dzakasiyana-siyana dzomunzanga kunoratidza kuti zvikanganiso zvisingaoneki ndizvo zvinonyanya kukanganisa kuchengeteka mumamiriro ezvinhu akaoma. Tsaona dzakadaro dzinosanganisira  <response>: Tsaona yeThree Mile Island, njodzi yeHeysel Stadium, njodzi yeBhopal, njodzi yeChernobyl, njodzi yeSpace Shuttle Challenger, moto weKings Cross, Piper Alpha, uye MS Herald of Free Enterprise. 