{"id":"S85068166","label":"Iron-aluminum alloys","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85068166","normalized_label":"iron-aluminum alloys","broader":["http://id.loc.gov/authorities/subjects/sh85003975","http://id.loc.gov/authorities/subjects/sh85068162"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85068166","provider":"lcsh","revision":"a92a5a6cf3ba2fbf","taxonomy_revision":"f050b5d4780b1289","title":"Iron-aluminum alloys","url":"/topics/S85068166","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290693282202256960","address_version":"morton4x16-v1","coordinates":[0,20,18470,6144],"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}