{"subject_places": ["Great Britain"], "subjects": ["Coal mines and mining", "Coal mines and mining, great britain"], "key": "/works/OL19489495W", "title": "Coal", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL3418619A"}}], "type": {"key": "/type/work"}, "latest_revision": 2, "revision": 2, "created": {"type": "/type/datetime", "value": "2019-04-03T13:37:52.516987"}, "last_modified": {"type": "/type/datetime", "value": "2022-12-17T04:10:50.832385"}}