{"id":"S85100366","label":"Petroleum--Migration","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85100366","normalized_label":"petroleum--migration","broader":["http://id.loc.gov/authorities/subjects/sh85100364"],"aliases":["Migration of petroleum","Oil migration"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85100366","provider":"lcsh","revision":"20d39aa917b7d78f","taxonomy_revision":"f050b5d4780b1289","title":"Petroleum--Migration","url":"/topics/S85100366","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326722354095212036","address_version":"morton4x16-v1","coordinates":[0,20,18973,14336],"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}