{"id":"S85133438","label":"Telephone systems","description":"Here are entered general works on telephone systems. Works on telephone systems in a particular place are entered under [Telephone--[local subdivision].]","source_url":"https://id.loc.gov/authorities/subjects/sh85133438","normalized_label":"telephone systems","broader":["http://id.loc.gov/authorities/subjects/sh85133301"],"aliases":["Telephony"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85133438","provider":"lcsh","revision":"066c889ea8a16a9b","taxonomy_revision":"f050b5d4780b1289","title":"Telephone systems","url":"/topics/S85133438","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10126559266425930244","address_version":"morton4x16-v1","coordinates":[0,20,19489,63488],"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}