{"id":"S85110739","label":"Radioisotopes in hydrology","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85110739","normalized_label":"radioisotopes in hydrology","broader":["http://id.loc.gov/authorities/subjects/sh85063458","http://id.loc.gov/authorities/subjects/sh85110620","http://id.loc.gov/authorities/subjects/sh85110715"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85110739","provider":"lcsh","revision":"8be813801bad745f","taxonomy_revision":"f050b5d4780b1289","title":"Radioisotopes in hydrology","url":"/topics/S85110739","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"864911306736944708","address_version":"morton4x16-v1","coordinates":[0,20,19135,19456],"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}