{"id":"S2009102894","label":"Technology--History--20th century","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2009102894","normalized_label":"technology--history--20th century","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2009102894","provider":"lcsh","revision":"1df3b09bb79c37ac","taxonomy_revision":"f050b5d4780b1289","title":"Technology--History--20th century","url":"/topics/S2009102894","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9261793398661210658","address_version":"morton4x16-v1","coordinates":[0,479,488,47104],"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}