{"id":"S2021001002","label":"Information storage and retrieval systems--Railroads","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2021001002","normalized_label":"information storage and retrieval systems--railroads","broader":[],"aliases":["Railroads--Information storage and retrieval systems"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2021001002","provider":"lcsh","revision":"e5837a8fc7295ccb","taxonomy_revision":"f050b5d4780b1289","title":"Information storage and retrieval systems--Railroads","url":"/topics/S2021001002","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14160654243754951682","address_version":"morton4x16-v1","coordinates":[0,481,55324,43008],"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}