# Materials { "id": "S2002006405", "title": "Materials", "url": "/topics/S2002006405", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "7386b3d32cd82650", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "291616882266613314", "address_version": "morton4x16-v1", "coordinates": [ 0, 477, 20678, 5120 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Use as a topical subdivision under scientific and technical disciplines and under types of equipment and construction. Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh2002006405 No owner-reviewed local answer yet.