elf[8], ref[7], fes[7], bel[6], ble[6], cel[5], cle[5], lec[5], ber[5], erb[5], reb[5], web[5], cer[4], ces[4], cew[4], lew[4], ser[3], rew[3], wre[3], swe[3],
ef[6], fe[6], be[4], ce[3], el[3], er[2], re[2], es[2], se[2], ew[2], we[2],