Question: when was you ain't nothin but a hound dog released
[{'answer': 'February 1953', 'provenance': [{'wikipedia_id': '785473', 'title': 'Hound Dog (song)', 'start_paragraph_id': 1, 'start_character': 210, 'end_paragraph_id': 1, 'end_character': 223, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '785473', 'title': 'Hound Dog (song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 562, 'bleu_score': 0.9804854598160591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7139719412925494370}, 'section': 'Section::::Abstract.'}]}]