nogo[6], ogon[6], gron[6], gnoz[6], zgon[6], noro[4], ozon[4], zono[4],
gon[5], gro[5], ogr[5], gzo[5], ono[3], nor[3], oro[3], zon[3], zoo[3], orz[3],
go[4], no[2], on[2], or[2], ro[2], oz[2],
