{"_buckets": {"deposit": "42bf5fe8-b46f-4d8a-b9bc-bfcedb009a14"}, "_deposit": {"id": "31433", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "31433"}, "status": "published"}, "_oai": {"id": "oai:repository.dl.itc.u-tokyo.ac.jp:00031433", "sets": ["4319", "4320"]}, "item_4_alternative_title_1": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "