{"id":"S85091783","label":"Nickel catalysts","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85091783","normalized_label":"nickel catalysts","broader":["http://id.loc.gov/authorities/subjects/sh85020940"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85091783","provider":"lcsh","revision":"b0f62fbc5bdc834e","taxonomy_revision":"f050b5d4780b1289","title":"Nickel catalysts","url":"/topics/S85091783","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290702096544958020","address_version":"morton4x16-v1","coordinates":[0,20,18839,7168],"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}