{"id":"S85051977","label":"Friedel-Crafts reaction","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85051977","normalized_label":"friedel-crafts reaction","broader":["http://id.loc.gov/authorities/subjects/sh85022952"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85051977","provider":"lcsh","revision":"18eeb60aa395d2d5","taxonomy_revision":"f050b5d4780b1289","title":"Friedel-Crafts reaction","url":"/topics/S85051977","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"324272659372327428","address_version":"morton4x16-v1","coordinates":[0,20,18217,9216],"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}