{"id":"S85014551","label":"Black duck","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85014551","normalized_label":"black duck","broader":["http://id.loc.gov/authorities/subjects/sh85004818"],"aliases":["American black duck","Anas rubripes","North American black duck"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85014551","provider":"lcsh","revision":"0477141ca1b931f6","taxonomy_revision":"f050b5d4780b1289","title":"Black duck","url":"/topics/S85014551","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"867096861041885696","address_version":"morton4x16-v1","coordinates":[0,20,17632,23552],"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}