{"type": {"key": "/type/work"}, "title": "Il valore di un castello", "subjects": ["History", "Castles", "Economic conditions"], "subject_places": ["Valle d'Aosta (Italy)", "Italy", "Valle d'Aosta"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL6845900A"}, "role": "author."}], "key": "/works/OL45138704W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2026-04-15T15:10:00.459564"}, "last_modified": {"type": "/type/datetime", "value": "2026-04-15T15:10:00.459564"}}