{"id":"S2004007051","label":"Class 56 (Diesel locomotives)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2004007051","normalized_label":"class 56 (diesel locomotives)","broader":["http://id.loc.gov/authorities/subjects/sh85037816"],"aliases":["British Rail Class 56 (Diesel locomotives)","Class 56 (Diesel locomotive)","Grids (Diesel locomotives)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2004007051","provider":"lcsh","revision":"a4373c2751475e49","taxonomy_revision":"f050b5d4780b1289","title":"Class 56 (Diesel locomotives)","url":"/topics/S2004007051","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4936165379107070530","address_version":"morton4x16-v1","coordinates":[0,477,51938,11264],"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}