hub[9], pub[8], phu[8], puh[8], hau[7], uha[7], obu[7], phy[7], hep[6], hop[6], opu[6], aby[6], boy[6], oby[6], hoy[6], abo[5], boa[5], oba[5], hao[5], opy[5],
bu[6], hu[6], by[5], ba[4], be[4], ha[4], eh[4], he[4], bo[4], ho[4], oh[4], au[4], pa[3], pe[3], op[3], po[3], eo[2],