{"id":"S85039566","label":"Drilling platforms","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85039566","normalized_label":"drilling platforms","broader":["http://id.loc.gov/authorities/subjects/sh85094218","http://id.loc.gov/authorities/subjects/sh85094220","http://id.loc.gov/authorities/subjects/sh85094386"],"aliases":["Marine drilling platforms","Ocean drilling platforms","Oil drilling platforms","Oil platforms","Platforms, Drilling","Spar platforms"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85039566","provider":"lcsh","revision":"fc486ad057f9c1b0","taxonomy_revision":"f050b5d4780b1289","title":"Drilling platforms","url":"/topics/S85039566","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326656383468570180","address_version":"morton4x16-v1","coordinates":[0,20,18023,14336],"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}