{"id":"S85019421","label":"Canal aqueducts","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85019421","normalized_label":"canal aqueducts","broader":["http://id.loc.gov/authorities/subjects/sh85006259"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85019421","provider":"lcsh","revision":"4035034444c70fe4","taxonomy_revision":"f050b5d4780b1289","title":"Canal aqueducts","url":"/topics/S85019421","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"902984936611530240","address_version":"morton4x16-v1","coordinates":[0,20,17708,29696],"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}