{"id":"S85002683","label":"Air pollution control industry","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85002683","normalized_label":"air pollution control industry","broader":["http://id.loc.gov/authorities/subjects/sh85002574","http://id.loc.gov/authorities/subjects/sh85104543"],"aliases":["Air pollution control industries"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85002683","provider":"lcsh","revision":"3d73eb9aef79565f","taxonomy_revision":"f050b5d4780b1289","title":"Air pollution control industry","url":"/topics/S85002683","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10124245893961090624","address_version":"morton4x16-v1","coordinates":[0,20,17446,60416],"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}