{"id":"S99001494","label":"Oil well drilling--Equipment and supplies","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh99001494","normalized_label":"oil well drilling--equipment and supplies","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh99001494","provider":"lcsh","revision":"d440790636c6734b","taxonomy_revision":"f050b5d4780b1289","title":"Oil well drilling--Equipment and supplies","url":"/topics/S99001494","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5191735852635914850","address_version":"morton4x16-v1","coordinates":[0,23,39570,22528],"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}