{"id":"S88004612","label":"Centrex telephone service","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh88004612","normalized_label":"centrex telephone service","broader":["http://id.loc.gov/authorities/subjects/sh85133438"],"aliases":["Central exchange telephone service"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh88004612","provider":"lcsh","revision":"6644e141f4f22193","taxonomy_revision":"f050b5d4780b1289","title":"Centrex telephone service","url":"/topics/S88004612","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4921379153682498048","address_version":"morton4x16-v1","coordinates":[0,20,64352,4096],"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}