{"_buckets": {"deposit": "1d437923-aacf-4c29-94b2-ea738149c034"}, "_deposit": {"id": "54523", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "54523"}, "status": "published"}, "_oai": {"id": "oai:repository.dl.itc.u-tokyo.ac.jp:00054523", "sets": ["8462", "8461"]}, "item_4_alternative_title_1": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "