bita[7], bitw[7], bawi[6], wabi[6], watt[6], wiat[5], wita[5],
bat[6], tab[6], bit[6], bai[5], tit[5], baw[5], wab[5], tai[4], twa[4], wat[4], iwa[3], wii[3],
ba[4], bi[4], at[3], ta[3], ii[2], iw[2],
