{"subjects": ["Philadelphia (pa.), history", "Pennsylvania, juvenile literature"], "key": "/works/OL20522643W", "title": "Philadelphia", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL33325A"}}], "type": {"key": "/type/work"}, "covers": [9173183], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2019-12-09T06:46:17.393734"}, "last_modified": {"type": "/type/datetime", "value": "2024-07-08T20:28:44.934042"}}