bece[7], eche[7], hece[7], beks[7], heks[7], esce[5], esek[5],
che[6], ech[6], hec[6], bek[6], bee[5], ehe[5], cek[5], hes[5], ces[4], eks[4],
be[4], eh[4], he[4], ce[3], ee[2], es[2], se[2],
