{"id":"S2014000038","label":"Air-fuel ratio","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2014000038","normalized_label":"air-fuel ratio","broader":["http://id.loc.gov/authorities/subjects/sh85028831","http://id.loc.gov/authorities/subjects/sh85086334"],"aliases":["A-F ratio (Combustion)","Fuel-air ratio","Ratio, A-F (Combustion)","Ratio, Air-fuel","Ratio, Fuel-air"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2014000038","provider":"lcsh","revision":"4da99e8c9ce1add8","taxonomy_revision":"f050b5d4780b1289","title":"Air-fuel ratio","url":"/topics/S2014000038","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9243853749760312384","address_version":"morton4x16-v1","coordinates":[0,480,11470,38912],"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}