{"id":"S87004171","label":"Agricultural machinery--Traction","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh87004171","normalized_label":"agricultural machinery--traction","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh87004171","provider":"lcsh","revision":"c3d313dc69290705","taxonomy_revision":"f050b5d4780b1289","title":"Agricultural machinery--Traction","url":"/topics/S87004171","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4667079689180152320","address_version":"morton4x16-v1","coordinates":[0,20,48720,11264],"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}