{"created": {"type": "/type/datetime", "value": "2009-12-09T00:12:16.658791"}, "subject_places": ["United States"], "subjects": ["National parks and reserves"], "latest_revision": 2, "key": "/works/OL649108W", "title": "National Park Service 50th anniversary, 1916-1966", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL50352A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2010-12-05T15:47:57.050372"}, "revision": 2}