{"id":"S89002456","label":"Crops--Effect of drainage on","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh89002456","normalized_label":"crops--effect of drainage on","broader":["http://id.loc.gov/authorities/subjects/sh85039296"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh89002456","provider":"lcsh","revision":"5a4da5e8463f0d3b","taxonomy_revision":"f050b5d4780b1289","title":"Crops--Effect of drainage on","url":"/topics/S89002456","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"631700216550131270","address_version":"morton4x16-v1","coordinates":[0,21,14407,24576],"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}