hipa[7], hopi[7], opia[5], opie[5],
hep[6], hip[6], phi[6], hop[6], ehe[5], hai[5], hao[5], hoi[5], pai[4], pia[4], pie[4], poi[4],
ha[4], eh[4], he[4], hi[4], ho[4], oh[4], pa[3], pe[3], pi[3], op[3], po[3], ee[2], ii[2], eo[2],