Question: when did the british burn down washington dc
[{'answer': 'August 24 , 1814', 'provenance': [{'wikipedia_id': '1335486', 'title': 'Burning of Washington', 'start_paragraph_id': 9, 'start_character': 1077, 'end_paragraph_id': 9, 'end_character': 1093, 'bleu_score': 1.0, 'section': 'Section::::Reasons.\n'}]}, {'provenance': [{'wikipedia_id': '1335486', 'title': 'Burning of Washington', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 849, 'bleu_score': 0.705411448123617, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5170247323031245048}, 'section': 'Section::::Abstract.'}]}]