{"id":"S2010013350","label":"Oil well drilling--Research","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2010013350","normalized_label":"oil well drilling--research","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2010013350","provider":"lcsh","revision":"d7373a23607c7db9","taxonomy_revision":"f050b5d4780b1289","title":"Oil well drilling--Research","url":"/topics/S2010013350","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9244975267729269346","address_version":"morton4x16-v1","coordinates":[0,479,14714,38912],"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}