{"id":"S95002430","label":"Railroad accidents--Investigation","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh95002430","normalized_label":"railroad accidents--investigation","broader":["http://id.loc.gov/authorities/subjects/sh85000370"],"aliases":["Railroad accident investigation"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh95002430","provider":"lcsh","revision":"4399dffbbe735c61","taxonomy_revision":"f050b5d4780b1289","title":"Railroad accidents--Investigation","url":"/topics/S95002430","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14467959213412206112","address_version":"morton4x16-v1","coordinates":[0,22,42620,63488],"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}