{"id":"S90000932","label":"Magnesium compounds","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh90000932","normalized_label":"magnesium compounds","broader":["http://id.loc.gov/authorities/subjects/sh2012003540"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh90000932","provider":"lcsh","revision":"8e97e4a4cafbeda6","taxonomy_revision":"f050b5d4780b1289","title":"Magnesium compounds","url":"/topics/S90000932","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9532998926467482114","address_version":"morton4x16-v1","coordinates":[0,21,30008,36864],"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}