Question: when did the smoky mountains became a national park
[{'answer': '15 June 1934', 'provenance': [{'wikipedia_id': '365553', 'title': 'Great Smoky Mountains National Park', 'start_paragraph_id': 5, 'start_character': 1430, 'end_paragraph_id': 5, 'end_character': 1442, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '365553', 'title': 'Great Smoky Mountains National Park', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 1641, 'bleu_score': 0.902381750540689, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 305868961267246733}, 'section': 'Section::::History.\n'}]}]