erhu[8], puer[7], repu[7], sepu[7], ruse[6], sure[6], pers[5], eser[4],
phu[8], puh[8], hep[6], psu[6], spu[6], ehe[5], her[5], hes[5], esu[5], rus[5], sur[5], per[4], rep[4], sep[4], ser[3],
hu[6], eh[4], he[4], su[4], pe[3], ee[2], er[2], re[2], es[2], se[2],
