bisy[7], byss[7], cisy[6], syci[6], siwy[5], wisy[5],
bis[5], cyi[5], cis[4], sic[4], wic[4], iwy[4], siw[3], wis[3], wsi[3],
by[5], bi[4], ci[3], wy[3], si[2], iw[2],
