3 Yinjiramo imbere apima umubyimba w’urukuta rurimo umuryango, uba imikono ibiri. Apima umuryango ubwawo, abona imikono itandatu; naho impande zombi z’urukuta uwo muryango wari utoboreyemo, rumwe rugira imikono irindwi n’urundi irindwi.