What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_12 for which if x_12 works, then x_12 is rich. For all x_12, x_12 is rich if and only if x_12 will drive a car. For all x_12, if x_12 were a cashier, then x_12 is working. For all x_12, x_12 will not drive a car.
There is at least one x_12 for which if x_12 were a cashier, then x_12 is rich. For all x_12, if x_12 were rich, then x_12 is driving a car. For all x_12, if x_12 drives a car, then x_12 is rich. For all x_12, x_12 is not rich.