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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def random_word(self, length, prefix=0, start=False, end=False, flatten=False):
 """ Generate a random word of length from this table. :param length: the length of the generated word; >= 1; :param prefix: if greater than 0, the maximum length of the prefix to consider to choose the next character; :param start: if True, the generated word starts as a word of table; :param end: if True, the generated word ends as a word of table; :param flatten: whether or not consider the table as flattened; :return: a random word of length generated from table. :raises GenerationError: if no word of length can be generated. """

        if start:
            word = ">"
            length += 1
            return self._extend_word(word, length, prefix=prefix, end=end,
                                     flatten=flatten)[1:]
        else:
            first_letters = list(k for k in self if len(k) == 1 and k != ">")
            while True:
                word = random.choice(first_letters)
                try:
                    word = self._extend_word(word, length, prefix=prefix,
                                             end=end, flatten=flatten)
                    return word
                except GenerationError:
                    first_letters.remove(word[0])