refem[10], smerf[10], serem[6],
efem[9], ferm[9], fere[8], free[8], sfer[8], erem[5], esem[5], eser[4],
fee[7], ref[7], fes[7], mee[4], mer[4], rem[4], mes[4], sem[4], ser[3],
ef[6], fe[6], em[3], me[3], ee[2], er[2], re[2], es[2], se[2],
