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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 word(self):
 """ Lazy-loads word value :getter: Returns the plain string value of the word :type: str """

        if self._word is None:
            words = self._element.xpath('word/text()')
            if len(words) > 0:
                self._word = words[0]
        return self._word