{"id":"S2010006821","label":"Carbon steel--Brittleness","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2010006821","normalized_label":"carbon steel--brittleness","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2010006821","provider":"lcsh","revision":"bef38af492707729","taxonomy_revision":"f050b5d4780b1289","title":"Carbon steel--Brittleness","url":"/topics/S2010006821","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9244843326262617634","address_version":"morton4x16-v1","coordinates":[0,479,14612,37888],"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}