Question: who ordered the japanese attack on pearl harbor
[{'answer': 'Emperor Hirohito', 'provenance': [{'wikipedia_id': '60098', 'title': 'Attack on Pearl Harbor', 'start_paragraph_id': 18, 'start_character': 134, 'end_paragraph_id': 18, 'end_character': 150, 'bleu_score': 1.0, 'section': 'Section::::Background to conflict.:Military planning.\n'}]}, {'provenance': [{'wikipedia_id': '60098', 'title': 'Attack on Pearl Harbor', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 516, 'bleu_score': 0.9748377259086851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15181745427064295216}, 'section': 'Section::::Background to conflict.:Military planning.\n'}]}]