{"id":"S85041945","label":"Electric railroads--Brakes","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85041945","normalized_label":"electric railroads--brakes","broader":["http://id.loc.gov/authorities/subjects/sh85016379"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85041945","provider":"lcsh","revision":"fea2a7702fba89ab","taxonomy_revision":"f050b5d4780b1289","title":"Electric railroads--Brakes","url":"/topics/S85041945","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"900733395565430272","address_version":"morton4x16-v1","coordinates":[0,20,18060,25600],"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}