{"id":"S93003245","label":"Drinking water--Purification","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh93003245","normalized_label":"drinking water--purification","broader":[],"aliases":["Purification of drinking water"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh93003245","provider":"lcsh","revision":"9d3ca70e3ba8858f","taxonomy_revision":"f050b5d4780b1289","title":"Drinking water--Purification","url":"/topics/S93003245","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9279750595152316004","address_version":"morton4x16-v1","coordinates":[0,22,11383,46080],"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}