{"id":"S2009127563","label":"Iron industry and trade--United States--History","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2009127563","normalized_label":"iron industry and trade--united states--history","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2009127563","provider":"lcsh","revision":"734833480ae32b09","taxonomy_revision":"f050b5d4780b1289","title":"Iron industry and trade--United States--History","url":"/topics/S2009127563","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"36178631889936994","address_version":"morton4x16-v1","coordinates":[0,479,874,11264],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}