{"id":"S85003975","label":"Aluminum alloys","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85003975","normalized_label":"aluminum alloys","broader":["http://id.loc.gov/authorities/subjects/sh85076897"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85003975","provider":"lcsh","revision":"b1785ec27f5e2a0e","taxonomy_revision":"f050b5d4780b1289","title":"Aluminum alloys","url":"/topics/S85003975","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290636107597890116","address_version":"morton4x16-v1","coordinates":[0,20,17467,7168],"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}