{"id":"S85104540","label":"Pollution control equipment","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85104540","normalized_label":"pollution control equipment","broader":["http://id.loc.gov/authorities/subjects/sh85065869"],"aliases":["Equipment, Pollution control","Pollution equipment"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85104540","provider":"lcsh","revision":"66a09c3482553f9e","taxonomy_revision":"f050b5d4780b1289","title":"Pollution control equipment","url":"/topics/S85104540","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"903042368977389120","address_version":"morton4x16-v1","coordinates":[0,20,19038,28672],"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}