erhu[8], hero[6], euro[6], ruro[6], zeru[6], orze[4], zero[4],
her[5], hor[5], rho[5], oru[5], rur[5], ozu[5], uzo[5], ero[3], ezo[3], zer[3], orz[3],
hu[6], eh[4], he[4], ho[4], oh[4], eo[2], er[2], re[2], or[2], ro[2], ez[2], ze[2], oz[2],
