{"id":"S2006020250","label":"Railroad tracks--Microbiology","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2006020250","normalized_label":"railroad tracks--microbiology","broader":["http://id.loc.gov/authorities/subjects/sh85084783"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2006020250","provider":"lcsh","revision":"44a1109fb96fdd41","taxonomy_revision":"f050b5d4780b1289","title":"Railroad tracks--Microbiology","url":"/topics/S2006020250","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"900865088490185312","address_version":"morton4x16-v1","coordinates":[0,478,17858,26624],"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}