{"id":"S85080162","label":"Mallet locomotives","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85080162","normalized_label":"mallet locomotives","broader":["http://id.loc.gov/authorities/subjects/sh85078028"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85080162","provider":"lcsh","revision":"8b72ca32af5868f6","taxonomy_revision":"f050b5d4780b1289","title":"Mallet locomotives","url":"/topics/S85080162","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9511813520384197124","address_version":"morton4x16-v1","coordinates":[0,20,18657,34816],"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}