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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 _get_triplet(dd):
 """Return a triplet from a dialogue dictionary. :param dd: Dialogue dictionary. :type dd: Dict[str, str] :return: (query, response, error response) :rtype: (str, str | NoResponse, str | NoResponse) """

    return _s(dd['q']), _s(dd.get('r', NoResponse)), _s(dd.get('e', NoResponse))