Ikiranga 1:Gariyamoshi yo kunyerera hamwe no kunyerera birahuye nukoresheje imipira, kuburyo kunyeganyega ni bito, bikwiranye nibikoresho nibisabwa.
Ibiranga 2:Kubera ubuso-hejuru, irwanya cyane ni nto cyane, kandi imigendeke myiza irashobora gukorwa kugirango igere kumwanya wabigenewe-ibikoresho byo kugenzura, nibindi.