{"id":"S85057450","label":"Ground control (Mining)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85057450","normalized_label":"ground control (mining)","broader":["http://id.loc.gov/authorities/subjects/sh85085538","http://id.loc.gov/authorities/subjects/sh85085712","http://id.loc.gov/authorities/subjects/sh85114673"],"aliases":["Control of ground in mining","Ground support (Mining)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85057450","provider":"lcsh","revision":"173c7c32631c32d4","taxonomy_revision":"f050b5d4780b1289","title":"Ground control (Mining)","url":"/topics/S85057450","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9547776637689808448","address_version":"morton4x16-v1","coordinates":[0,20,18302,43008],"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}