What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: There is at least one x_10 for which x_10 is a politician or x_10 will not sleep. For all x_10, if x_10 were a politician, then x_10 is driving a car. For all x_10, if x_10 were a politician, then x_10 is sleeping.
There is at least one x_10 for which if x_10 sleeps, then x_10 is a politician can be inferred via the existential rewriting rule.