Kusukela kokubomvu kuya kokunsundu kuye kwethusi, imibala yezinwele iyahlukahluka ngokwemfashini kulobu busika ukuze ihlanganise, imfudumalo namandla, futhi ihlukaniswa nezinga lombala namandla awo. Ake silandele namuhla ukuthi yimiphi imibala yakamuva yezinwele edumile kulo nyaka .