{"id":"S2004001223","label":"Radioactive substances--Detection","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2004001223","normalized_label":"radioactive substances--detection","broader":[],"aliases":["Detection of radioactive substances"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2004001223","provider":"lcsh","revision":"d2a145012241707c","taxonomy_revision":"f050b5d4780b1289","title":"Radioactive substances--Detection","url":"/topics/S2004001223","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4902388381830489670","address_version":"morton4x16-v1","coordinates":[0,477,51847,7168],"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}