{"id":"S2012000219","label":"Sound-waves--Attenuation","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2012000219","normalized_label":"sound-waves--attenuation","broader":["http://id.loc.gov/authorities/subjects/sh2003007020"],"aliases":["Sound-wave attenuation"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2012000219","provider":"lcsh","revision":"05513e6b51e78ed0","taxonomy_revision":"f050b5d4780b1289","title":"Sound-waves--Attenuation","url":"/topics/S2012000219","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5243465684864099942","address_version":"morton4x16-v1","coordinates":[0,479,45759,27648],"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}