Question: when did we drop the atomic bomb on hiroshima
[{'answer': 'August 6 , 1945', 'provenance': [{'wikipedia_id': '11778948', 'title': 'Atomic bombings of Hiroshima and Nagasaki', 'start_paragraph_id': 63, 'start_character': 749, 'end_paragraph_id': 63, 'end_character': 764, 'bleu_score': 1.0, 'section': 'Section::::Hiroshima.:Hiroshima during World War II.\n'}]}, {'provenance': [{'wikipedia_id': '11778948', 'title': 'Atomic bombings of Hiroshima and Nagasaki', 'start_paragraph_id': 63, 'start_character': 0, 'end_paragraph_id': 63, 'end_character': 763, 'bleu_score': 0.9090843197357881, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10003040816341801401}, 'section': 'Section::::Hiroshima.:Hiroshima during World War II.\n'}]}]