bisu[8], dusi[7], widu[7], susi[6], wisu[6],
bud[8], bus[7], bid[6], idu[6], dwu[6], bis[5], siu[5], sus[5], suw[5], dis[4], diw[4], wid[4], siw[3], wis[3], wsi[3],
bu[6], ud[5], bi[4], su[4], wu[4], id[3], si[2], iw[2],
