{"id":"S85003983","label":"Aluminum alloys--Metallography","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85003983","normalized_label":"aluminum alloys--metallography","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85003983","provider":"lcsh","revision":"67c9972e11c9174b","taxonomy_revision":"f050b5d4780b1289","title":"Aluminum alloys--Metallography","url":"/topics/S85003983","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326664904616854084","address_version":"morton4x16-v1","coordinates":[0,20,17467,15360],"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}