{"id":"S85114774","label":"Siliceous rocks","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85114774","normalized_label":"siliceous rocks","broader":["http://id.loc.gov/authorities/subjects/sh85114749"],"aliases":["Rocks, Siliceous"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85114774","provider":"lcsh","revision":"90b1dbd42b3004b9","taxonomy_revision":"f050b5d4780b1289","title":"Siliceous rocks","url":"/topics/S85114774","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"867154310524716608","address_version":"morton4x16-v1","coordinates":[0,20,19198,22528],"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}