# Mars (Planet)--Atmospheric ozone { "id": "S2004007494", "title": "Mars (Planet)--Atmospheric ozone", "url": "/topics/S2004007494", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "10278dc26c1debc8", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "4902379585808785926", "address_version": "morton4x16-v1", "coordinates": [ 0, 477, 51945, 6144 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh2004007494 No owner-reviewed local answer yet.