<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def hyphenation(phrase, format='json'):
 """ Returns back the stress points in the "phrase" passed :param phrase: word for which hyphenation is to be found :param format: response structure type. Defaults to: "json" :returns: returns a json object as str, False if invalid phrase """

        base_url = Vocabulary.__get_api_link("wordnik")
        url = base_url.format(word=phrase.lower(), action="hyphenation")
        json_obj = Vocabulary.__return_json(url)
        if json_obj:
            # return json.dumps(json_obj)
            # return json_obj
            return Response().respond(json_obj, format)
        else:
            return False