bolu[9], bulo[9], lobu[9], lubo[9], ubol[9], bluz[9], buzo[8], zolu[7],
bul[8], lub[8], obu[7], buz[7], bzu[7], bol[6], lob[6], luz[6], ozu[5], uzo[5], zol[4],
bu[6], lu[5], ul[5], bo[4], oz[2],
