{"id":"S85028838","label":"Combustion deposits in engines","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85028838","normalized_label":"combustion deposits in engines","broader":["http://id.loc.gov/authorities/subjects/sh85043258","http://id.loc.gov/authorities/subjects/sh85052213"],"aliases":["Carbon deposits in engines"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85028838","provider":"lcsh","revision":"7178c32dbc5f2cc6","taxonomy_revision":"f050b5d4780b1289","title":"Combustion deposits in engines","url":"/topics/S85028838","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9513999366613255748","address_version":"morton4x16-v1","coordinates":[0,20,17855,38912],"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}