{"id":"S85108610","label":"Public address systems","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85108610","normalized_label":"public address systems","broader":["http://id.loc.gov/authorities/subjects/sh85125364"],"aliases":["PA systems"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85108610","provider":"lcsh","revision":"db3412fbed776b79","taxonomy_revision":"f050b5d4780b1289","title":"Public address systems","url":"/topics/S85108610","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"288441758336304704","address_version":"morton4x16-v1","coordinates":[0,20,19102,2048],"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}