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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 _feature_first_back(self, results):
 """ Get the country of the first two results back from geonames. Parameters results: dict elasticsearch results Returns ------- top: tuple first and second results' country name (ISO) """

        try:
            first_back = results['hits']['hits'][0]['country_code3']
        except (TypeError, IndexError):
            # usually occurs if no Geonames result
            first_back = ""
        try:
            second_back = results['hits']['hits'][1]['country_code3']
        except (TypeError, IndexError):
            second_back = ""
        top = (first_back, second_back)
        return top