{"id":"S85104138","label":"Polar regions--Discovery and exploration","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85104138","normalized_label":"polar regions--discovery and exploration","broader":[],"aliases":["Expeditions, Polar","Polar expeditions"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85104138","provider":"lcsh","revision":"a2e9a79c1a9a4b6f","taxonomy_revision":"f050b5d4780b1289","title":"Polar regions--Discovery and exploration","url":"/topics/S85104138","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"324470554348634624","address_version":"morton4x16-v1","coordinates":[0,20,19032,10240],"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}