{"id":"S86006832","label":"Class 50 (Diesel locomotives)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh86006832","normalized_label":"class 50 (diesel locomotives)","broader":["http://id.loc.gov/authorities/subjects/sh85037816"],"aliases":["British Rail Class 50 (Diesel locomotives)","Class 50 (Diesel locomotive)","English Electric Type 4 (Diesel locomotives)","Hoovers (Diesel locomotives)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh86006832","provider":"lcsh","revision":"5fc21ab1d721f93d","taxonomy_revision":"f050b5d4780b1289","title":"Class 50 (Diesel locomotives)","url":"/topics/S86006832","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14411518824837153280","address_version":"morton4x16-v1","coordinates":[0,20,33136,49152],"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}