efy[8], efo[7], fez[7], ewy[4], ezy[4], ozy[4], wyz[4], zwy[4], ewo[3], owe[3], ezo[3], zew[3],
ef[6], fe[6], wy[3], eo[2], ew[2], we[2], ez[2], ze[2], oz[2],
