{"id":"S85032399","label":"Copper-tin-magnesium alloys","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85032399","normalized_label":"copper-tin-magnesium alloys","broader":["http://id.loc.gov/authorities/subjects/sh85032341","http://id.loc.gov/authorities/subjects/sh85079660","http://id.loc.gov/authorities/subjects/sh85135489"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85032399","provider":"lcsh","revision":"923372feb9df2a62","taxonomy_revision":"f050b5d4780b1289","title":"Copper-tin-magnesium alloys","url":"/topics/S85032399","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326664922937558596","address_version":"morton4x16-v1","coordinates":[0,20,17911,15360],"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}