# Mine railroad tracks--Maintenance and repair--Equipment and supplies { "id": "S2006005717", "title": "Mine railroad tracks--Maintenance and repair--Equipment and supplies", "url": "/topics/S2006005717", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "5eb43a0f8e37e31f", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "866956132709983844", "address_version": "morton4x16-v1", "coordinates": [ 0, 478, 17631, 21504 ], "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/sh2006005717 No owner-reviewed local answer yet.