{"id":"S89000684","label":"Binary control systems","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh89000684","normalized_label":"binary control systems","broader":["http://id.loc.gov/authorities/subjects/sh85010089"],"aliases":["Binary automatic control systems"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh89000684","provider":"lcsh","revision":"12663c4216f628b1","taxonomy_revision":"f050b5d4780b1289","title":"Binary control systems","url":"/topics/S89000684","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9280863300852269638","address_version":"morton4x16-v1","coordinates":[0,21,14379,45056],"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}