{"id":"S85084234","label":"Metals--Refining","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85084234","normalized_label":"metals--refining","broader":[],"aliases":["Purification of metals","Refining of metals"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85084234","provider":"lcsh","revision":"dd430633b4446914","taxonomy_revision":"f050b5d4780b1289","title":"Metals--Refining","url":"/topics/S85084234","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"324470296587403780","address_version":"morton4x16-v1","coordinates":[0,20,18721,10240],"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}