{"id":"S85078310","label":"Longwall mining","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85078310","normalized_label":"longwall mining","broader":["http://id.loc.gov/authorities/subjects/sh85027364"],"aliases":["Longwall method of mining","Mining, Longwall"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85078310","provider":"lcsh","revision":"a14d0793cf61e350","taxonomy_revision":"f050b5d4780b1289","title":"Longwall mining","url":"/topics/S85078310","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9514065320193689088","address_version":"morton4x16-v1","coordinates":[0,20,18628,38912],"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}