Nka primer kubintu bisukuye byambaye ubusa hejuru yicyuma ahantu hatuje kandi habi cyane, nkibikoresho byibyuma, ibiraro, imashini zicyambu, urubuga rwo hanze, imashini zubaka, ibigega byo kubikamo imiyoboro, ibikoresho byamashanyarazi, nibindi, bifatanije nibikorwa byinshi. amarangi, ashobora kurushaho kunoza imikorere yo kurwanya ruswa;