{"id":"S2001004757","label":"Ross Ice Shelf (Antarctica)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2001004757","normalized_label":"ross ice shelf (antarctica)","broader":["http://id.loc.gov/authorities/subjects/sh2009008576"],"aliases":["Grosse Eisebene (Antarctica)","Ross Barrier (Antarctica)","Ross Ice Barrier (Antarctica)","Ross Shelf Ice (Antarctica)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2001004757","provider":"lcsh","revision":"92ac198220bb9f66","taxonomy_revision":"f050b5d4780b1289","title":"Ross Ice Shelf (Antarctica)","url":"/topics/S2001004757","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"579847550413185606","address_version":"morton4x16-v1","coordinates":[0,477,5027,21504],"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}