Function: gradient[1](log(sum(numbers("yxx"), numbers('xyy')) if numbers("yxx") > numbers('xyy') else gradient[0](sum(numbers("yxx"), numbers('xyy'))), gradient[0](sum(numbers("yxx"), numbers('xyy'))))) if sum(numbers("yxx"), numbers('xyy')) if gradient[0](sum(numbers("yxx"), numbers('xyy'))) > numbers("yxx") else numbers('xyy') > gradient[0](sum(numbers("yxx"), numbers('xyy'))) else log(numbers('xyy') if gradient[0](sum(numbers("yxx"), numbers('xyy'))) > numbers("yxx") else sum(numbers("yxx"), numbers('xyy')), gradient[0](sum(numbers("yxx"), numbers('xyy'))))