{"id":"S85125410","label":"Soundproofing","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85125410","normalized_label":"soundproofing","broader":["http://id.loc.gov/authorities/subjects/sh85000248","http://id.loc.gov/authorities/subjects/sh85000596","http://id.loc.gov/authorities/subjects/sh85092183"],"aliases":["Insulation (Sound)","Sound insulation","Sound--Insulation"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85125410","provider":"lcsh","revision":"4d6700c3b1d7d756","taxonomy_revision":"f050b5d4780b1289","title":"Soundproofing","url":"/topics/S85125410","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9511813812374865408","address_version":"morton4x16-v1","coordinates":[0,20,19364,34816],"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}