{"id":"S85083805","label":"Mercury arc","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85083805","normalized_label":"mercury arc","broader":["http://id.loc.gov/authorities/subjects/sh85041587","http://id.loc.gov/authorities/subjects/sh85041657"],"aliases":["Arc, Mercury"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85083805","provider":"lcsh","revision":"3d95e08ce9e56034","taxonomy_revision":"f050b5d4780b1289","title":"Mercury arc","url":"/topics/S85083805","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"903050907305263680","address_version":"morton4x16-v1","coordinates":[0,20,18714,29696],"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}