{"id":"S85098502","label":"Passenger pigeon","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85098502","normalized_label":"passenger pigeon","broader":["http://id.loc.gov/authorities/subjects/sh91004230"],"aliases":["Ectopistes migratorius","Passenger pigeons"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85098502","provider":"lcsh","revision":"f301f18ddc1dd97e","taxonomy_revision":"f050b5d4780b1289","title":"Passenger pigeon","url":"/topics/S85098502","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290693557075968512","address_version":"morton4x16-v1","coordinates":[0,20,18944,6144],"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}