{"id":"S87004172","label":"Forest machinery--Traction","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh87004172","normalized_label":"forest machinery--traction","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh87004172","provider":"lcsh","revision":"9e4679414f9e7a55","taxonomy_revision":"f050b5d4780b1289","title":"Forest machinery--Traction","url":"/topics/S87004172","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4669181955412460032","address_version":"morton4x16-v1","coordinates":[0,20,48720,12288],"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}