{"id":"S2001008072","label":"B mesons--Decay","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2001008072","normalized_label":"b mesons--decay","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2001008072","provider":"lcsh","revision":"cdff0a2b6476717a","taxonomy_revision":"f050b5d4780b1289","title":"B mesons--Decay","url":"/topics/S2001008072","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"37154999285196358","address_version":"morton4x16-v1","coordinates":[0,477,5079,8192],"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}