sfór[12], fere[8], free[8], sfen[8], sfer[8], eser[4], eses[4], sens[4], sers[4],
fee[7], fen[7], nef[7], ref[7], fes[7], ner[3], ren[3], sen[3], ser[3],
ef[6], fe[6], ós[6], ee[2], en[2], er[2], re[2], es[2], se[2],
