Question: planes that dropped bombs on hiroshima and nagasaki
[{'answer': 'Bockscar', 'provenance': [{'wikipedia_id': '14616755', 'title': 'Bockscar', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 8, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '14616755', 'title': 'Bockscar', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 596, 'bleu_score': 0.916577979929009, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2074669298059193214}, 'section': 'Section::::Abstract.'}]}]