frez[8], drew[5], drze[5], rdze[5], wrze[4], zerw[4], rzez[4],
ref[7], fez[7], der[4], red[4], rew[3], wre[3], zer[3], zew[3], zez[3],
ef[6], fe[6], de[3], er[2], re[2], ew[2], we[2], ez[2], ze[2],
