What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_8, if x_8 takes a plane, then x_8 is not driving a car. For all x_8, x_8 will take a plane or x_8 is a bartender. For all x_8, x_8 will drive a car. There is at least one x_8 for which x_8 is not a bartender or x_8 is a lawyer.
For all x_8, x_8 will not take a plane.