What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_9, if x_9 were a police officer, then x_9 is playing a game. For all x_9, x_9 is not an astronaut or x_9 is a police officer. For all x_9, x_9 is a sailor or x_9 is an astronaut. For all x_9, x_9 is not a sailor or x_9 is a cashier. For all x_9, if x_9 were a cashier, then x_9 is playing a game.
For all x_9, x_9 is an astronaut or x_9 is a cashier.