{"created": {"type": "/type/datetime", "value": "2009-12-10T09:05:58.597803"}, "subject_places": ["North America", "United States"], "subjects": ["Natural gas reserves", "Reserves"], "latest_revision": 3, "key": "/works/OL5221153W", "title": "North American natural gas reserves and resources", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1170601A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2010-12-04T22:42:21.215265"}, "revision": 3}