{"id":"S85054103","label":"Geology, Stratigraphic--Ordovician","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85054103","normalized_label":"geology, stratigraphic--ordovician","broader":["http://id.loc.gov/authorities/subjects/sh85054105"],"aliases":["Ordovician Period"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85054103","provider":"lcsh","revision":"c655bc28b94069ae","taxonomy_revision":"f050b5d4780b1289","title":"Geology, Stratigraphic--Ordovician","url":"/topics/S85054103","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"867097152021742144","address_version":"morton4x16-v1","coordinates":[0,20,18250,23552],"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}