efę[11], efo[7], ref[7], for[7], orf[7], erę[7], her[5], hor[5], rho[5], ero[3],
hę[8], ef[6], fe[6], eh[4], he[4], ho[4], oh[4], eo[2], er[2], re[2], or[2], ro[2],
