nogo[6], ogon[6], song[6], gnoz[6], zgon[6], nono[4], ozon[4], zono[4], znos[4],
gon[5], gzo[5], non[3], ono[3], nos[3], son[3], oso[3], zon[3], zoo[3],
go[4], no[2], on[2], os[2], oz[2],
