Function: log(minus(sum(product(exp(numbers("yxx"), numbers('xry')), numbers("yxx")), exp(numbers("yxx"), numbers('xry'))), product(exp(numbers("yxx"), numbers('xry')), numbers("yxx"))), sum(product(exp(numbers("yxx"), numbers('xry')), numbers("yxx")), exp(numbers("yxx"), numbers('xry'))))
