ceną[9], cerą[9], fere[8], free[8], nerą[8], erce[5],
efą[11], cną[8], fee[7], fen[7], nef[7], ref[7], erą[7], cen[4], cne[4], cer[4], ner[3], ren[3],
ef[6], fe[6], ce[3], ee[2], en[2], er[2], re[2],
