sitw[5], wist[5], witz[5], siwi[4], wisi[4], zwis[4],
itr[4], tir[4], tri[4], sit[4], sir[3], wii[3], wir[3], siw[3], wis[3], wsi[3], zis[3], wiz[3],
ts[3], ii[2], si[2], iw[2],
