blef[11], efeb[10], bell[8], sfen[8], bele[7], lesb[7],
elf[8], fee[7], fen[7], nef[7], fes[7], bel[6], ble[6], bee[5], ben[5], lee[4], len[4], sen[3],
ef[6], fe[6], be[4], el[3], ee[2], en[2], es[2], se[2],
