Few exercises back I translated "kasha" which is kasha, not really translatable, as it is ethnic name of ethnic dish. Any way Duo corrected it as "cereal" . Now in order to please Duo and to move ahead I translated "cereal". Duo doesn't like it. "Porridge", he says Dear Duo, "porridge" is kasha, namely "oat kasha" and not every kasha is porridge.