beko[7], beks[7], heks[7], boks[7], bose[6], esko[5], kose[5],
bek[6], bok[6], hes[5], eko[4], eks[4], kos[4], sok[4],
be[4], eh[4], he[4], bo[4], ho[4], oh[4], ko[3], ok[3], eo[2], es[2], se[2], os[2],
