{"id":"S85020140","label":"Carbonium ions","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85020140","normalized_label":"carbonium ions","broader":["http://id.loc.gov/authorities/subjects/sh97006242"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85020140","provider":"lcsh","revision":"5f22e0073b4f1381","taxonomy_revision":"f050b5d4780b1289","title":"Carbonium ions","url":"/topics/S85020140","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9549887425070106180","address_version":"morton4x16-v1","coordinates":[0,20,17719,45056],"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}