Question: when did the bank of the united states fail
[{'answer': '1931', 'provenance': [{'wikipedia_id': '5667068', 'title': 'Bank of United States', 'start_paragraph_id': 1, 'start_character': 143, 'end_paragraph_id': 1, 'end_character': 147, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5667068', 'title': 'Bank of United States', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 257, 'bleu_score': 0.928430400129665, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1061194150492600567}, 'section': 'Section::::Abstract.'}]}]