{"id":"S85068181","label":"Iron compounds","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85068181","normalized_label":"iron compounds","broader":["http://id.loc.gov/authorities/subjects/sh85136949"],"aliases":["Ferric compounds","Ferrous compounds"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85068181","provider":"lcsh","revision":"1cadc576377e73dc","taxonomy_revision":"f050b5d4780b1289","title":"Iron compounds","url":"/topics/S85068181","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"867022093110347328","address_version":"morton4x16-v1","coordinates":[0,20,18470,21504],"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}