{"id":"S86001946","label":"Soil acidification","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh86001946","normalized_label":"soil acidification","broader":["http://id.loc.gov/authorities/subjects/sh86001947"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh86001946","provider":"lcsh","revision":"3521f6878dd8fa0c","taxonomy_revision":"f050b5d4780b1289","title":"Soil acidification","url":"/topics/S86001946","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5224316322422326784","address_version":"morton4x16-v1","coordinates":[0,20,33060,26624],"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}