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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 _tokenize(self, text):
 """Tokenize the text into a list of sentences with a list of words. :param text: raw text :return: tokenized text :rtype : list """

        sentences = []
        tokens = []
        for word in self._clean_accents(text).split(' '):
            tokens.append(word)
            if '.' in word:
                sentences.append(tokens)
                tokens = []
        return sentences