{"id":"S2020000334","label":"AM broadcasting","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2020000334","normalized_label":"am broadcasting","broader":["http://id.loc.gov/authorities/subjects/sh85110448"],"aliases":["AM radio broadcasting","Amplitude modulation broadcasting","Amplitude modulation radio broadcasting"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2020000334","provider":"lcsh","revision":"39bc80b144de770b","taxonomy_revision":"f050b5d4780b1289","title":"AM broadcasting","url":"/topics/S2020000334","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4651303922619662342","address_version":"morton4x16-v1","coordinates":[0,481,39689,14336],"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}