bitw[7], ibis[6], wint[5], sitw[5], wist[5], insi[4], sini[4], iwin[4], wini[4], siwi[4], wisi[4],
bit[6], bin[5], ibn[5], bis[5], nit[4], sit[4], wii[3], niw[3], win[3], siw[3], wis[3], wsi[3],
bi[4], ts[3], ii[2], in[2], ni[2], si[2], iw[2],
