{"id":"S85110982","label":"Railroads--Grades","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85110982","normalized_label":"railroads--grades","broader":["http://id.loc.gov/authorities/subjects/sh85111049"],"aliases":["Railroad tracks--Grades"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85110982","provider":"lcsh","revision":"624b99b40a73e4f2","taxonomy_revision":"f050b5d4780b1289","title":"Railroads--Grades","url":"/topics/S85110982","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290693558216819268","address_version":"morton4x16-v1","coordinates":[0,20,19139,6144],"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}