Function: sum(numbers("xxr") if numbers('epe') > numbers('xyy') else numbers('yxy') if gradient[0](numbers("xxr") if numbers('epe') > numbers('yxy') else numbers('xyy')) > numbers('xyy') else numbers('yxy') if gradient[0](numbers('yxy') if numbers('xyy') > numbers('epe') else numbers("xxr")) > numbers("xxr") if numbers('epe') > numbers('yxy') else numbers('xyy') else numbers('xyy'), numbers('xyy') if numbers('epe') > numbers("xxr") else numbers('yxy') if numbers('yxy') > gradient[0](numbers('yxy') if numbers("xxr") > numbers('xyy') else numbers('epe')) else numbers('xyy'))