beko[7], kobo[7], obok[7], beks[7], boks[7], epok[6], kopo[6], okop[6], opok[6], bose[6], boso[6], skop[6], esko[5], kose[5], koso[5], osok[5], epos[5], osep[5], peso[5], opos[5], ospo[5],
bek[6], bok[6], kop[5], eko[4], oko[4], eks[4], kos[4], sok[4], sep[4], osp[4], oso[3],
be[4], bo[4], ko[3], ok[3], pe[3], op[3], po[3], eo[2], es[2], se[2], os[2],
