siwi[4], wisi[4], siwo[4], sowi[4], swoi[4], wsio[4], wizo[4], wozi[4], zwis[4], wszo[4],
osi[3], sio[3], soi[3], wii[3], iwo[3], owi[3], wio[3], siw[3], wis[3], wsi[3], zis[3], wiz[3],
ii[2], si[2], os[2], iw[2], oz[2],
