{"id":"S85111008","label":"Railroad rails--Defects","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85111008","normalized_label":"railroad rails--defects","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85111008","provider":"lcsh","revision":"ce4bd62a040e67a1","taxonomy_revision":"f050b5d4780b1289","title":"Railroad rails--Defects","url":"/topics/S85111008","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9511673057769554500","address_version":"morton4x16-v1","coordinates":[0,20,19139,32768],"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}