bece[7], obce[7], beko[7], beks[7], boks[7], koce[6], bose[6], esce[5], esek[5], esko[5], kose[5],
bek[6], cob[6], bok[6], bee[5], cek[5], koc[5], eko[4], ces[4], eks[4], soc[4], kos[4], sok[4],
be[4], bo[4], ce[3], co[3], ko[3], ok[3], ee[2], eo[2], es[2], se[2], os[2],
