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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 words(self):
 """Return a list of word tokens. This excludes punctuation characters. If you want to include punctuation characters, access the ``tokens`` property. :returns: A :class:`WordList <WordList>` of word tokens. """

        return WordList(
            word_tokenize(self.raw, self.tokenizer, include_punc=False))