{"id":"S85042179","label":"Electromagnetic waves","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85042179","normalized_label":"electromagnetic waves","broader":["http://id.loc.gov/authorities/subjects/sh85042178","http://id.loc.gov/authorities/subjects/sh85145789"],"aliases":["Electromagnetic energy","Electromagnetic radiation"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85042179","provider":"lcsh","revision":"131e0ebaba0ed219","taxonomy_revision":"f050b5d4780b1289","title":"Electromagnetic waves","url":"/topics/S85042179","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"288384583731642880","address_version":"morton4x16-v1","coordinates":[0,20,18064,3072],"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}