{"id":"S91001913","label":"Soils--Silica content","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh91001913","normalized_label":"soils--silica content","broader":["http://id.loc.gov/authorities/subjects/sh85122495"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh91001913","provider":"lcsh","revision":"8216558fae09e6d1","taxonomy_revision":"f050b5d4780b1289","title":"Soils--Silica content","url":"/topics/S91001913","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14466696974059307522","address_version":"morton4x16-v1","coordinates":[0,21,45648,58368],"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}