{"id":"S85002830","label":"Airplanes--IFF equipment","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85002830","normalized_label":"airplanes--iff equipment","broader":["http://id.loc.gov/authorities/subjects/sh85001371","http://id.loc.gov/authorities/subjects/sh85002890","http://id.loc.gov/authorities/subjects/sh85029110","http://id.loc.gov/authorities/subjects/sh85110308"],"aliases":["Aircraft IFF equipment","Challenge-reply systems (Radar)","IFF systems","Identification, Friend or foe (Electronic equipment)","Interrogator-transpondor systems"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85002830","provider":"lcsh","revision":"7478a593704f3a81","taxonomy_revision":"f050b5d4780b1289","title":"Airplanes--IFF equipment","url":"/topics/S85002830","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326656108523569668","address_version":"morton4x16-v1","coordinates":[0,20,17449,14336],"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}