Question: who was the emperor of japan in ww2
[{'answer': 'Emperor Hirohito', 'provenance': [{'wikipedia_id': '10287', 'title': 'Hirohito', 'start_paragraph_id': 39, 'start_character': 333, 'end_paragraph_id': 39, 'end_character': 349, 'bleu_score': 1.0, 'section': 'Section::::World War II.:Preparations.\n'}]}, {'provenance': [{'wikipedia_id': '10287', 'title': 'Hirohito', 'start_paragraph_id': 60, 'start_character': 0, 'end_paragraph_id': 60, 'end_character': 418, 'bleu_score': 0.970795021215021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11480058696018729277}, 'section': 'Section::::World War II.:Accountability for Japanese war crimes.\n'}]}]