Ibipapuro bifata imashini bifata ibyuma bitandukanye, kandi impeta y'imbere n'inyuma y'icyuma cyafashe inzira nyabagendwa. Ubu bwoko bwo kwifata bugabanijwe muburyo butandukanye bwubatswe nkumurongo umwe, umurongo wikubye kabiri hamwe numurongo ine washyizwe kumurongo ukurikije umubare wumurongo wizingo washyizweho.