{"type": {"key": "/type/work"}, "title": "Lo stato ghibellino di Federico II", "subjects": ["History"], "subject_places": ["Italy"], "subject_times": ["476-1268"], "subject_people": ["Frederick II Holy Roman Emperor (1194-1250)"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL134929A"}}], "key": "/works/OL45003274W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2026-03-15T00:23:15.451992"}, "last_modified": {"type": "/type/datetime", "value": "2026-03-15T00:23:15.451992"}}