qua[12], gab[6], bug[6], bad[5], bar[5], bau[5], arg[4], gar[4], rag[4], gau[4], gur[4], dad[3], dar[3], rad[3], dau[3], rau[3], dur[3],
ab[4], ad[2], da[2], ar[2], au[2], du[2], ud[2], ur[2],