fere[8], free[8], henr[6], erek[5],
fee[7], fen[7], nef[7], ref[7], ehe[5], hen[5], her[5], ker[4], rek[4], ner[3], ren[3],
ef[6], fe[6], eh[4], he[4], ee[2], en[2], er[2], re[2],
