refu[10], fezu[10], ergu[8], frez[8], gruz[8], grze[6], zeru[6],
fug[11], fru[9], fur[9], ruf[9], ref[7], gur[7], rug[7], fez[7], guz[7], erg[5], gez[5], zer[3],
fu[8], uf[8], ef[6], fe[6], gu[6], er[2], re[2], ez[2], ze[2],
