{"id":"S99003655","label":"Combined cycle power plants","description":"Here are entered works on power plants that burn natural gas or oil first to run a turbine and then use the waste heat to run a conventional steam-boiler.","source_url":"https://id.loc.gov/authorities/subjects/sh99003655","normalized_label":"combined cycle power plants","broader":["http://id.loc.gov/authorities/subjects/sh85105986"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh99003655","provider":"lcsh","revision":"c9d051bb692286a0","taxonomy_revision":"f050b5d4780b1289","title":"Combined cycle power plants","url":"/topics/S99003655","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4615283896429708834","address_version":"morton4x16-v1","coordinates":[0,23,39604,7168],"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}