{"id":"S85141727","label":"Vacuum arcs","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85141727","normalized_label":"vacuum arcs","broader":["http://id.loc.gov/authorities/subjects/sh85041587","http://id.loc.gov/authorities/subjects/sh85141743"],"aliases":["Arcs, Vacuum"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85141727","provider":"lcsh","revision":"061b85dd6ed54c69","taxonomy_revision":"f050b5d4780b1289","title":"Vacuum arcs","url":"/topics/S85141727","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"903196026737918532","address_version":"morton4x16-v1","coordinates":[0,20,19619,31744],"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}