{"id":"S2013003316","label":"6400 Class (Steam locomotives)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2013003316","normalized_label":"6400 class (steam locomotives)","broader":["http://id.loc.gov/authorities/subjects/sh95009086"],"aliases":["64XX Class (Steam locomotives)","Class 6400 (Steam locomotives)","Class 64XX (Steam locomotives)","GWR 6400 Class (Steam locomotives)","GWR 64XX Class (Steam locomotives)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2013003316","provider":"lcsh","revision":"6c8d5f4566df568f","taxonomy_revision":"f050b5d4780b1289","title":"6400 Class (Steam locomotives)","url":"/topics/S2013003316","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14720090451214754338","address_version":"morton4x16-v1","coordinates":[0,479,61432,53248],"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}