bidy[8], bied[7], weby[7], dewy[6], diwy[6], widy[6], dwie[5],
efy[8], dyb[7], bid[6], web[5], idy[5], diw[4], wid[4], ewy[4], iwy[4], wie[3],
ef[6], fe[6], fi[6], by[5], be[4], bi[4], de[3], id[3], wy[3], ew[2], we[2], iw[2],
