{"id":"S93003905","label":"Extended-reach oil well drilling","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh93003905","normalized_label":"extended-reach oil well drilling","broader":["http://id.loc.gov/authorities/subjects/sh85094378"],"aliases":["ERD (Oil well drilling)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh93003905","provider":"lcsh","revision":"f123c904a789696f","taxonomy_revision":"f050b5d4780b1289","title":"Extended-reach oil well drilling","url":"/topics/S93003905","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"18097962467066464","address_version":"morton4x16-v1","coordinates":[0,22,11394,1024],"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}