boyu[9], buzy[9], zebu[8], buzo[8], boye[7], bezy[7], bezo[6], ouzo[6], zezy[5],
obu[7], buz[7], bzu[7], boy[6], oby[6], bzy[6], bez[5], ozu[5], uzo[5], ezy[4], ozy[4], ezo[3], zoo[3], zez[3],
bu[6], by[5], be[4], bo[4], eo[2], ez[2], ze[2], oz[2],
