{"id":"S2006001737","label":"High pressure ionization chambers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2006001737","normalized_label":"high pressure ionization chambers","broader":["http://id.loc.gov/authorities/subjects/sh85067823"],"aliases":["HPICs (Ionization chambers)","High pressure ion chambers"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2006001737","provider":"lcsh","revision":"b50175a6bbc554df","taxonomy_revision":"f050b5d4780b1289","title":"High pressure ionization chambers","url":"/topics/S2006001737","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"324272377548644900","address_version":"morton4x16-v1","coordinates":[0,478,17569,9216],"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}