efeb[10], bece[7], eche[7], hece[7], esce[5],
fee[7], fes[7], che[6], ech[6], hec[6], bee[5], ehe[5], hes[5], ces[4],
ef[6], fe[6], be[4], eh[4], he[4], ce[3], ee[2], es[2], se[2],
