1Ingorane z’uguhingura ibikoresho. Gushika ku gice c’uruzitiro, gikwiye gukoreshwa n’ibikoresho birinzwe, vyikingira, kugira ngo umuntu yirinde umuyagankuba udahinduka w’urubuga rwo gucapura n’izuru .
2.Ibintu vy’Urutonde. Cane cane ikirere co mu bumanuko ni kenshi gitose. Iyo hariho inkuba, hazoba hariho ions nyinshi mu kirere, kandi ibikoresho bikaba ari ivyuma, kugira ngo biroroshe cane gushika ku muyagankuba udahinduka;
