{"id":"S85055111","label":"Optical glass","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85055111","normalized_label":"optical glass","broader":["http://id.loc.gov/authorities/subjects/sh85055102","http://id.loc.gov/authorities/subjects/sh85095155"],"aliases":["Glass, Optical"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85055111","provider":"lcsh","revision":"d5d2ab927e5d43eb","taxonomy_revision":"f050b5d4780b1289","title":"Optical glass","url":"/topics/S85055111","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290636399718580800","address_version":"morton4x16-v1","coordinates":[0,20,18266,7168],"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}