erhu[8], puer[7], repu[7], peri[5],
phu[8], puh[8], hep[6], hip[6], phi[6], piu[6], her[5], rui[5], rur[5], pie[4], per[4], rep[4], prr[4], rei[3],
hu[6], eh[4], he[4], hi[4], pe[3], pi[3], er[2], re[2],
