{"id":"S2010109485","label":"Railroads--Soviet Union--History","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2010109485","normalized_label":"railroads--soviet union--history","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2010109485","provider":"lcsh","revision":"e51851e9e71adf77","taxonomy_revision":"f050b5d4780b1289","title":"Railroads--Soviet Union--History","url":"/topics/S2010109485","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9280876796273123874","address_version":"morton4x16-v1","coordinates":[0,479,16216,46080],"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}