{"id":"S89000834","label":"Railroad tunnels--Switzerland","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh89000834","normalized_label":"railroad tunnels--switzerland","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh89000834","provider":"lcsh","revision":"a07533ab4cfa1ee2","taxonomy_revision":"f050b5d4780b1289","title":"Railroad tunnels--Switzerland","url":"/topics/S89000834","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"19351404653200962","address_version":"morton4x16-v1","coordinates":[0,21,14382,2048],"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}