bubi[8], biga[7], baud[6],
bub[7], gab[6], gib[6], bug[6], bad[5], abi[5], bai[5], bau[5], gau[4], dia[3], dau[3],
ab[4], bi[4], ad[2], da[2], ai[2], au[2], du[2], ud[2], ui[2],
