{"id":"S2004010611","label":"Iron smelting","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2004010611","normalized_label":"iron smelting","broader":["http://id.loc.gov/authorities/subjects/sh85123636"],"aliases":["Iron ores--Smelting"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2004010611","provider":"lcsh","revision":"73b8380df32e59f1","taxonomy_revision":"f050b5d4780b1289","title":"Iron smelting","url":"/topics/S2004010611","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14699969387281408518","address_version":"morton4x16-v1","coordinates":[0,477,51993,52224],"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}