Question: what kind of government was installed in japan after ww2
[{'answer': 'retained a native government', 'provenance': [{'wikipedia_id': '87995', 'title': 'Occupation of Japan', 'start_paragraph_id': 66, 'start_character': 34, 'end_paragraph_id': 66, 'end_character': 62, 'bleu_score': 1.0, 'section': 'Section::::Politics.\n'}]}, {'provenance': [{'wikipedia_id': '87995', 'title': 'Occupation of Japan', 'start_paragraph_id': 66, 'start_character': 0, 'end_paragraph_id': 66, 'end_character': 449, 'bleu_score': 0.9699161750394991, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14764509403131245527}, 'section': 'Section::::Politics.\n'}]}]