{"id":"S85027414","label":"Coalbed methane","description":"Here are entered works on methane present in a stratum of coal. Works on methane as a combustible gas formed in coal mines are entered under [Firedamp.]","source_url":"https://id.loc.gov/authorities/subjects/sh85027414","normalized_label":"coalbed methane","broader":["http://id.loc.gov/authorities/subjects/sh85084379","http://id.loc.gov/authorities/subjects/sh85085508"],"aliases":["CBM (Coalbed methane)","Coal bed methane","Coal seam gas","Coal--Methane content","Coalbed natural gas","Gas, Coal seam","Natural gas, Coalbed","Seam gas, Coal"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85027414","provider":"lcsh","revision":"28a04b2525ffc05a","taxonomy_revision":"f050b5d4780b1289","title":"Coalbed methane","url":"/topics/S85027414","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"867088082061640196","address_version":"morton4x16-v1","coordinates":[0,20,17833,22528],"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}