{"id":"S85122519","label":"Silicon carbide","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85122519","normalized_label":"silicon carbide","broader":["http://id.loc.gov/authorities/subjects/sh85020077","http://id.loc.gov/authorities/subjects/sh85122521"],"aliases":["Carborundum","Crystolon","Silundum"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85122519","provider":"lcsh","revision":"78b66b1a033fc27d","taxonomy_revision":"f050b5d4780b1289","title":"Silicon carbide","url":"/topics/S85122519","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"867163122723849796","address_version":"morton4x16-v1","coordinates":[0,20,19319,23552],"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}