{"id":"S85002784","label":"Airplanes--Air ducts","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85002784","normalized_label":"airplanes--air ducts","broader":["http://id.loc.gov/authorities/subjects/sh85002629"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85002784","provider":"lcsh","revision":"8e84599bb560af24","taxonomy_revision":"f050b5d4780b1289","title":"Airplanes--Air ducts","url":"/topics/S85002784","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9511606811057340928","address_version":"morton4x16-v1","coordinates":[0,20,17448,32768],"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}