bob[7], boj[7], job[7], bom[6], mob[6], bon[5], jon[5], mop[5], mon[4], nom[4], osm[4], som[4], osp[4], nos[3], son[3],
bo[4], oj[4], om[3], op[3], po[3], no[2], on[2], os[2],