{"id":"S85104139","label":"Polar wandering","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85104139","normalized_label":"polar wandering","broader":["http://id.loc.gov/authorities/subjects/sh85053976"],"aliases":["Chandler motion","Migration, Polar","Motion, Chandler","Motion, Polar","Polar migration","Polar motion","Wandering, Polar"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85104139","provider":"lcsh","revision":"2b84033feaa0ce7d","taxonomy_revision":"f050b5d4780b1289","title":"Polar wandering","url":"/topics/S85104139","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"324479350441656832","address_version":"morton4x16-v1","coordinates":[0,20,19032,11264],"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}