{"id":"S90006079","label":"Crops--Effect of iron on","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh90006079","normalized_label":"crops--effect of iron on","broader":["http://id.loc.gov/authorities/subjects/sh85068144"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh90006079","provider":"lcsh","revision":"3b63cc499de93f03","taxonomy_revision":"f050b5d4780b1289","title":"Crops--Effect of iron on","url":"/topics/S90006079","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10145638010440532482","address_version":"morton4x16-v1","coordinates":[0,21,30088,64512],"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}