{"id":"S85038265","label":"Directional drilling","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85038265","normalized_label":"directional drilling","broader":["http://id.loc.gov/authorities/subjects/sh85015851"],"aliases":["Controlled drilling","Drilling, Directional"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85038265","provider":"lcsh","revision":"5dd0ce6ff64da381","taxonomy_revision":"f050b5d4780b1289","title":"Directional drilling","url":"/topics/S85038265","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10124105431413817920","address_version":"morton4x16-v1","coordinates":[0,20,18002,58368],"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}