{"id":"S2004000736","label":"Iron fertilizers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2004000736","normalized_label":"iron fertilizers","broader":["http://id.loc.gov/authorities/subjects/sh85047919"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2004000736","provider":"lcsh","revision":"cf7e6c5ee7e6a8ca","taxonomy_revision":"f050b5d4780b1289","title":"Iron fertilizers","url":"/topics/S2004000736","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14123359084288042566","address_version":"morton4x16-v1","coordinates":[0,477,51839,32768],"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}