{"id":"S85111050","label":"Railroad switches","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85111050","normalized_label":"railroad switches","broader":["http://id.loc.gov/authorities/subjects/sh85111063"],"aliases":["Railroads--Switches","Switches, Railroad"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85111050","provider":"lcsh","revision":"9193c321a68fb919","taxonomy_revision":"f050b5d4780b1289","title":"Railroad switches","url":"/topics/S85111050","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"324470555422098944","address_version":"morton4x16-v1","coordinates":[0,20,19140,10240],"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}