{"id":"S85004020","label":"Aluminum-magnesium alloys","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85004020","normalized_label":"aluminum-magnesium alloys","broader":["http://id.loc.gov/authorities/subjects/sh85003975","http://id.loc.gov/authorities/subjects/sh85079660"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85004020","provider":"lcsh","revision":"a4445499e0ac2ed3","taxonomy_revision":"f050b5d4780b1289","title":"Aluminum-magnesium alloys","url":"/topics/S85004020","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10090319363174711876","address_version":"morton4x16-v1","coordinates":[0,20,17467,53248],"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}