fet[8], tef[8], ref[7], het[6], teł[6], her[5], ket[5], tek[5], ker[4], rek[4], ret[4], ter[4], wek[4], twe[4], wet[4], wte[4], rew[3], wre[3],
ef[6], fe[6], eh[4], he[4], eł[4], et[3], te[3], er[2], re[2], ew[2], we[2],