{"id":"S85145460","label":"Water--Hardness","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85145460","normalized_label":"water--hardness","broader":["http://id.loc.gov/authorities/subjects/sh85145600"],"aliases":["Hard water","Hardness of water"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85145460","provider":"lcsh","revision":"fe579bafb788701c","taxonomy_revision":"f050b5d4780b1289","title":"Water--Hardness","url":"/topics/S85145460","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10090389733055546884","address_version":"morton4x16-v1","coordinates":[0,20,19677,53248],"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}