{"id":"S2008003709","label":"Air ducts--Acoustic properties--Measurement","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2008003709","normalized_label":"air ducts--acoustic properties--measurement","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2008003709","provider":"lcsh","revision":"fd02aeebe8efd3ed","taxonomy_revision":"f050b5d4780b1289","title":"Air ducts--Acoustic properties--Measurement","url":"/topics/S2008003709","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14469023550897791524","address_version":"morton4x16-v1","coordinates":[0,478,48849,62464],"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}