{"id":"S85110585","label":"Radio wave propagation","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85110585","normalized_label":"radio wave propagation","broader":["http://id.loc.gov/authorities/subjects/sh85145785"],"aliases":["Propagation of radio waves","Radio waves--Propagation"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85110585","provider":"lcsh","revision":"ef1c29363ac03fd2","taxonomy_revision":"f050b5d4780b1289","title":"Radio wave propagation","url":"/topics/S85110585","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10124171403122329088","address_version":"morton4x16-v1","coordinates":[0,20,19132,58368],"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}