pogo[7], gips[7], opis[5], spoi[5], opos[5], ospo[5],
goi[5], ogi[5], gis[5], poi[4], psi[4], osp[4], osi[3], sio[3], soi[3], oso[3],
go[4], pi[3], op[3], po[3], ii[2], si[2], os[2],
