{"id":"S85049354","label":"Flue gases","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85049354","normalized_label":"flue gases","broader":["http://id.loc.gov/authorities/subjects/sh85028840","http://id.loc.gov/authorities/subjects/sh85046847"],"aliases":["Stack gases"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85049354","provider":"lcsh","revision":"6cc5fca3947f5ce6","taxonomy_revision":"f050b5d4780b1289","title":"Flue gases","url":"/topics/S85049354","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"324404600763449856","address_version":"morton4x16-v1","coordinates":[0,20,18176,10240],"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}