bub[9], hub[9], bud[8], duh[8], bab[7], bob[7], hau[7], uha[7], obu[7], bad[6], dba[6], bod[6], uda[6], duo[6], udo[6], abo[5], boa[5], oba[5], hao[5], dao[4], oda[4],
bu[6], hu[6], ud[5], ba[4], ha[4], bo[4], ho[4], oh[4], au[4], ad[3], da[3], do[3], od[3],