{"subject_places": ["Great Lakes Watershed (North America)", "Great Lakes (North America)"], "subjects": ["United States", "Environmental monitoring", "Great Lakes", "United States. Environmental Protection Agency", "Lake renewal", "Environmental aspects", "Hazardous wastes", "Environmental indicators", "Environmental aspects of Great Lakes (North America)", "Lake restoration"], "key": "/works/OL562974W", "title": "Great Lakes", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL4489781A"}}], "type": {"key": "/type/work"}, "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-08T05:17:42.349956"}, "last_modified": {"type": "/type/datetime", "value": "2020-12-07T18:58:43.652486"}}