sorii[5],
rosi[4], siwi[4], wisi[4], siwo[4], sowi[4], swoi[4], wsio[4],
roi[3], osi[3], sio[3], soi[3], sir[3], ros[3], wii[3], iwo[3], owi[3], wio[3], wir[3], rwo[3], siw[3], wis[3], wsi[3],
ii[2], or[2], ro[2], si[2], os[2], iw[2],
