{"id":"S85004002","label":"Aluminum-copper alloys","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85004002","normalized_label":"aluminum-copper alloys","broader":["http://id.loc.gov/authorities/subjects/sh85003975","http://id.loc.gov/authorities/subjects/sh85032341"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85004002","provider":"lcsh","revision":"d94f5b982a5efe8f","taxonomy_revision":"f050b5d4780b1289","title":"Aluminum-copper alloys","url":"/topics/S85004002","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9511747548545958468","address_version":"morton4x16-v1","coordinates":[0,20,17467,34816],"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}