{"id":"S85110303","label":"Radar air traffic control systems","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85110303","normalized_label":"radar air traffic control systems","broader":["http://id.loc.gov/authorities/subjects/sh85002704","http://id.loc.gov/authorities/subjects/sh85110308"],"aliases":["ARTS (Air traffic control)","Advanced radar traffic control systems (Aeronautics)","Radar traffic control systems (Aeronautics)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85110303","provider":"lcsh","revision":"5a7c66c0b43458b8","taxonomy_revision":"f050b5d4780b1289","title":"Radar air traffic control systems","url":"/topics/S85110303","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"903191903569592832","address_version":"morton4x16-v1","coordinates":[0,20,19128,31744],"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}