efor[8], orfo[8], frez[8], oreo[4], orze[4], zero[4],
efo[7], ref[7], for[7], orf[7], fez[7], ero[3], oro[3], ezo[3], zoo[3], zer[3], orz[3],
ef[6], fe[6], eo[2], er[2], re[2], or[2], ro[2], ez[2], ze[2], oz[2],
