Question: who was in charge of japan in 1945
[{'answer': 'Emperor Hirohito', 'provenance': [{'wikipedia_id': '5583892', 'title': '1945 in Japan', 'start_paragraph_id': 4, 'start_character': 12, 'end_paragraph_id': 4, 'end_character': 29, 'bleu_score': 1.0, 'section': 'Section::::Incumbents.\n'}]}, {'provenance': [{'wikipedia_id': '5583892', 'title': '1945 in Japan', 'start_paragraph_id': 62, 'start_character': 0, 'end_paragraph_id': 62, 'end_character': 95, 'bleu_score': 0.8385766789076251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2244137921792282919}, 'section': 'Section::::Events.\n'}]}]