big[7], gib[7], gap[6], aby[6], gay[6], boy[6], oby[6], bai[5], agi[5], gai[5], abo[5], boa[5], oba[5], ago[5], boi[5], obi[5], goi[5], ogi[5], opy[5], pai[4], pia[4], poi[4],
by[5], ba[4], ag[4], bi[4], bo[4], go[4], pa[3], pi[3], op[3], po[3],