FOEN J168 Sisitemu yo kunyerera itanga igisubizo cyuzuye kubwinyubako; imirongo itatu ya reberi irafunzwe, kandi umurongo wo hagati wa reberi utanga umukino wuzuye kubikorwa byamahame yimyenda yimvura, kugirango ibicuruzwa bigire umwuka mwiza namazi meza.Icyuma kinini Irashobora gutahura gufungura ibice binini, byoroshye guhuza ibikenewe byinyubako zinyuranye zubatswe; Igishushanyo mbonera cyabafana ba kadamu yo hanze nayo ituma inyubako igaragara neza kandi nziza, ibereye imishinga yo hagati na yohejuru.