{"id":"S86001503","label":"Operation Ranch Hand, 1962-1971","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh86001503","normalized_label":"operation ranch hand, 1962-1971","broader":["http://id.loc.gov/authorities/subjects/sh85060346","http://id.loc.gov/authorities/subjects/sh86001504"],"aliases":["Ranch Hand Project, 1962-1971","Ranch Hand, Operation, 1962-1971"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh86001503","provider":"lcsh","revision":"73444bd959930ffa","taxonomy_revision":"f050b5d4780b1289","title":"Operation Ranch Hand, 1962-1971","url":"/topics/S86001503","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5226576918325118468","address_version":"morton4x16-v1","coordinates":[0,20,33053,31744],"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}