Ababuranyi bavukana - gusambuza urubanza gushingira akarimbi umugeregwa - igihe kihaciye babana kw'itongo - itongo ry'umuheto risangiwe - itongo ryaguzwe inka - ivyemezo ko baguriye hamwe - kuba mu ndagano zitegekanijwe n'amategeko - kubana kw'abavukana kw'itongo ry'umuheto - kugurisha ibiri mw'itongo ntihagire uwufata - ubugeregwa - urubanza rudasambuwe.