{"id":"S86001504","label":"Vietnam War, 1961-1975--Chemical warfare","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh86001504","normalized_label":"vietnam war, 1961-1975--chemical warfare","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh86001504","provider":"lcsh","revision":"4eb86e1294582367","taxonomy_revision":"f050b5d4780b1289","title":"Vietnam War, 1961-1975--Chemical warfare","url":"/topics/S86001504","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"13835058072462444036","address_version":"morton4x16-v1","coordinates":[0,20,33053,32768],"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}