bibo[8], bigo[8], bogi[8], borg[8], brio[6], broi[6], robi[6], giro[6], igro[6], irgo[6], rogi[6],
bib[7], big[7], gib[7], bob[7], boi[5], obi[5], goi[5], ogi[5], gir[5], igr[5], irg[5], bor[5], rob[5], gro[5], ogr[5], roi[3],
bi[4], bo[4], go[4], or[2], ro[2],
