{"id":"S85053230","label":"Natural gas--Migration","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85053230","normalized_label":"natural gas--migration","broader":["http://id.loc.gov/authorities/subjects/sh85053227"],"aliases":["Gas migration","Migration of natural gas"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85053230","provider":"lcsh","revision":"c9146348170cc9b1","taxonomy_revision":"f050b5d4780b1289","title":"Natural gas--Migration","url":"/topics/S85053230","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9550028437436384768","address_version":"morton4x16-v1","coordinates":[0,20,18236,47104],"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}