{"id":"S90001357","label":"Chemical arms control","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh90001357","normalized_label":"chemical arms control","broader":["http://id.loc.gov/authorities/subjects/sh85007351"],"aliases":["Chemical weapons control"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh90001357","provider":"lcsh","revision":"7a8cccf8da57a113","taxonomy_revision":"f050b5d4780b1289","title":"Chemical arms control","url":"/topics/S90001357","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"345664482724693574","address_version":"morton4x16-v1","coordinates":[0,21,30015,13312],"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}