{"id":"S85085508","label":"Mine gases","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85085508","normalized_label":"mine gases","broader":["http://id.loc.gov/authorities/subjects/sh2006000039","http://id.loc.gov/authorities/subjects/sh85053395"],"aliases":["Gases in mines"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85085508","provider":"lcsh","revision":"1c7d9220d8f4422c","taxonomy_revision":"f050b5d4780b1289","title":"Mine gases","url":"/topics/S85085508","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290552561894032900","address_version":"morton4x16-v1","coordinates":[0,20,18741,4096],"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}