{"id":"S85133301","label":"Telecommunication systems","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85133301","normalized_label":"telecommunication systems","broader":["http://id.loc.gov/authorities/subjects/sh85042373","http://id.loc.gov/authorities/subjects/sh85133270"],"aliases":["Communication systems","Communications systems","Systems, Communication"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85133301","provider":"lcsh","revision":"7c41fad90133b0a9","taxonomy_revision":"f050b5d4780b1289","title":"Telecommunication systems","url":"/topics/S85133301","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10090398528007718468","address_version":"morton4x16-v1","coordinates":[0,20,19487,54272],"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}