{"id":"S85120475","label":"Sewage--Purification--Fixed-film biological process","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85120475","normalized_label":"sewage--purification--fixed-film biological process","broader":["http://id.loc.gov/authorities/subjects/sh85120466"],"aliases":["Fixed-film biological process (Sewage purification)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85120475","provider":"lcsh","revision":"805623dcae7564f5","taxonomy_revision":"f050b5d4780b1289","title":"Sewage--Purification--Fixed-film biological process","url":"/topics/S85120475","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"900940119924934212","address_version":"morton4x16-v1","coordinates":[0,20,19287,27648],"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}