obig[8], borg[8], grob[8], birg[7], bord[7], drob[7], giro[6],
bog[7], gib[6], bio[6], obi[6], bor[6], goi[5], gor[5], ido[4], iod[4], rod[4], roi[4], dir[3],
ob[5], bi[4], go[4], do[3], od[3],
