Kodwa isilo sathunjwa ndawonye lomphrofethi wamanga owayenze izibonakaliso ezimangalisayo emele sona. Ngalezi zibonakaliso wabedukisa labo ababebekwe uphawu lwesilo bakhonza umfanekiso waso. Sona lomphrofethi wamanga baphoselwa bephila echibini lomlilo wesolufa ovuthayo.