{"id":"S88002647","label":"Tropospheric chemistry","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh88002647","normalized_label":"tropospheric chemistry","broader":["http://id.loc.gov/authorities/subjects/sh85023027"],"aliases":["Chemistry, Tropospheric"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh88002647","provider":"lcsh","revision":"44a1d54437af9b48","taxonomy_revision":"f050b5d4780b1289","title":"Tropospheric chemistry","url":"/topics/S88002647","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5497989439563104772","address_version":"morton4x16-v1","coordinates":[0,20,64321,23552],"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}