erhu[8], hero[6], euro[6], ruse[6], sure[6], suro[6], eros[4],
her[5], hor[5], rho[5], hes[5], oru[5], esu[5], sou[5], rus[5], sur[5], ero[3], ser[3], ros[3],
hu[6], eh[4], he[4], ho[4], oh[4], su[4], eo[2], er[2], re[2], or[2], ro[2], es[2], se[2], os[2],
