{"id":"S85109411","label":"Quadraphonic sound systems","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85109411","normalized_label":"quadraphonic sound systems","broader":["http://id.loc.gov/authorities/subjects/sh85125368","http://id.loc.gov/authorities/subjects/sh85128009"],"aliases":["Four-channel sound systems","Sound systems, Quadraphonic"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85109411","provider":"lcsh","revision":"f797f0e9deab8242","taxonomy_revision":"f050b5d4780b1289","title":"Quadraphonic sound systems","url":"/topics/S85109411","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9511822591288033856","address_version":"morton4x16-v1","coordinates":[0,20,19114,35840],"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}