{"id":"S85028875","label":"Command and control systems","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85028875","normalized_label":"command and control systems","broader":["http://id.loc.gov/authorities/subjects/sh2015002635","http://id.loc.gov/authorities/subjects/sh85029110"],"aliases":["Control and command systems","Systems, Command and control"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85028875","provider":"lcsh","revision":"5730e2e927519b44","taxonomy_revision":"f050b5d4780b1289","title":"Command and control systems","url":"/topics/S85028875","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"324413123119415808","address_version":"morton4x16-v1","coordinates":[0,20,17856,11264],"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}