Hariho ubunini bwarebar, 8, 10, 12, bivuga diameter; Metero 9, metero 12 bivuga uburebure bwayo. Tuzabona amasahani hamwe ahubakwa, muri rusange yoroheje, azwi nka "inkoni y'insinga"; Ububiko bw'ibyuma muri rusange bivuga imigozi yaciwe, kandi hari hafi amagana muri bundle.