{"id":"S85063386","label":"Hydrocyanic acid gas","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85063386","normalized_label":"hydrocyanic acid gas","broader":["http://id.loc.gov/authorities/subjects/sh85053395"],"aliases":["Zyklon-B"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85063386","provider":"lcsh","revision":"5d09b03b01e38022","taxonomy_revision":"f050b5d4780b1289","title":"Hydrocyanic acid gas","url":"/topics/S85063386","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"900865354208002628","address_version":"morton4x16-v1","coordinates":[0,20,18395,26624],"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}