{"id":"S85053638","label":"Gearing, Spur","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85053638","normalized_label":"gearing, spur","broader":[],"aliases":["Gearing, Involute","Spur gearing"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85053638","provider":"lcsh","revision":"b4d5665cf6c02cc1","taxonomy_revision":"f050b5d4780b1289","title":"Gearing, Spur","url":"/topics/S85053638","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290627603625280068","address_version":"morton4x16-v1","coordinates":[0,20,18243,6144],"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}