{"id":"S85099036","label":"Pearlitic steel","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85099036","normalized_label":"pearlitic steel","broader":["http://id.loc.gov/authorities/subjects/sh85127749"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85099036","provider":"lcsh","revision":"b29f730e80eb7696","taxonomy_revision":"f050b5d4780b1289","title":"Pearlitic steel","url":"/topics/S85099036","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"903042368910017024","address_version":"morton4x16-v1","coordinates":[0,20,18952,28672],"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}