Ikirangantego kitagira imisumari, nanone cyitwa umusumari utagira imisumari cyangwa umusumari udafite imisumari, ni igikoresho kinini cyubaka kizwiho imbaraga zidasanzwe zo guhuza.Iyi ngingo ifata isanga izina ryayo ari "kole idafite imisumari" mu Bushinwa na "imisumari y'amazi" ku rwego mpuzamahanga.Ubu buhanzi ...
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