bitw[7], psic[6], trip[6], cist[6], tips[6], brwi[6], pirs[5], wcir[5], wpis[5], sitw[5], wist[5],
bit[6], cip[5], pic[5], bis[5], pit[5], pst[5], cis[4], sic[4], psi[4], itr[4], tir[4], tri[4], sit[4], wic[4], piw[4], sir[3], wir[3], siw[3], wis[3], wsi[3],
bi[4], ci[3], pi[3], ts[3], si[2], iw[2],
