{"id":"S85002900","label":"Airplanes--Soundproofing","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85002900","normalized_label":"airplanes--soundproofing","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85002900","provider":"lcsh","revision":"80e6297c7a9baebf","taxonomy_revision":"f050b5d4780b1289","title":"Airplanes--Soundproofing","url":"/topics/S85002900","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"866947326319673920","address_version":"morton4x16-v1","coordinates":[0,20,17450,20480],"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}