fere[8], free[8], frez[8], erek[5], krez[5], krze[5], rzek[5], erze[4],
fee[7], ref[7], fez[7], ehe[5], her[5], ker[4], rek[4], zek[4], zer[3],
ef[6], fe[6], eh[4], he[4], ee[2], er[2], re[2], ez[2], ze[2],
