code: def __roman_to_cyrillic(self, word):
          
          word = (word.replace("i^u", "\u044E").replace("i^a", "\u044F")
                      .replace("shch", "\u0449").replace("kh", "\u0445")
                      .replace("t^s", "\u0446").replace("ch", "\u0447")
                      .replace("e`", "\u044D").replace("i`", "\u0439")
                      .replace("sh", "\u0448").replace("k", "\u043A")
                      .replace("e", "\u0435").replace("zh", "\u0436")
                      .replace("a", "\u0430").replace("b", "\u0431")
                      .replace("v", "\u0432").replace("g", "\u0433")
                      .replace("d", "\u0434").replace("e", "\u0435")
                      .replace("z", "\u0437").replace("i", "\u0438")
                      .replace("l", "\u043B").replace("m", "\u043C")
                      .replace("n", "\u043D").replace("o", "\u043E")
                      .replace("p", "\u043F").replace("r", "\u0440")
                      .replace("s", "\u0441").replace("t", "\u0442")
                      .replace("u", "\u0443").replace("f", "\u0444")
                      .replace("''", "\u044A").replace("y", "\u044B")
                      .replace("'", "\u044C"))
  
  
          return word
docs: Transliterate a Russian word back into the Cyrillic alphabet.
  
          A Russian word formerly transliterated into the Roman alphabet
          in order to ease the stemming process, is transliterated back
          into the Cyrillic alphabet, its original form.
  
          :param word: The word that is transliterated.
          :type word: str or unicode
          :return: word, the transliterated word.
          :rtype: unicode
          :note: This helper method is invoked by the stem method of the subclass
                 RussianStemmer. It is not to be invoked directly!