{"id":"S2017004202","label":"Aircraft accidents--Antarctica","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2017004202","normalized_label":"aircraft accidents--antarctica","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2017004202","provider":"lcsh","revision":"7c99554cfd427f68","taxonomy_revision":"f050b5d4780b1289","title":"Aircraft accidents--Antarctica","url":"/topics/S2017004202","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14177476771663855680","address_version":"morton4x16-v1","coordinates":[0,480,58410,43008],"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}