{"id":"S90003443","label":"Silver catalysts","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh90003443","normalized_label":"silver catalysts","broader":["http://id.loc.gov/authorities/subjects/sh85020940"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh90003443","provider":"lcsh","revision":"aeb294db2fc66571","taxonomy_revision":"f050b5d4780b1289","title":"Silver catalysts","url":"/topics/S90003443","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10107357412601513542","address_version":"morton4x16-v1","coordinates":[0,21,30047,52224],"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}