efeb[10], febr[10], efem[9], ferm[9], fere[8], free[8], berd[7], debr[7], gder[7], brem[7], merg[7], rebe[6], derm[6], erem[5],
fee[7], beg[7], ref[7], gem[6], bee[5], dem[5], ber[5], erb[5], reb[5], erg[5], mee[4], der[4], red[4], mer[4], rem[4],
ef[6], fe[6], be[4], de[3], em[3], me[3], ee[2], er[2], re[2],
