{"id":"S85053292","label":"Gas engineering","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85053292","normalized_label":"gas engineering","broader":["http://id.loc.gov/authorities/subjects/sh85022900","http://id.loc.gov/authorities/subjects/sh85085712"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85053292","provider":"lcsh","revision":"72e8028fcc7a5de7","taxonomy_revision":"f050b5d4780b1289","title":"Gas engineering","url":"/topics/S85053292","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9549887699948029444","address_version":"morton4x16-v1","coordinates":[0,20,18237,45056],"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}