{"id":"S85110420","label":"Radio, Extremely low frequency","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85110420","normalized_label":"radio, extremely low frequency","broader":[],"aliases":["ELF radio","Extremely low frequency radio"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85110420","provider":"lcsh","revision":"8c9f5221eee5cde8","taxonomy_revision":"f050b5d4780b1289","title":"Radio, Extremely low frequency","url":"/topics/S85110420","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"867013572969251392","address_version":"morton4x16-v1","coordinates":[0,20,19130,20480],"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}