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, x_9 is not an artist or x_9 will sleep. For all x_9, x_9 is an artist or x_9 will climb a mountain. For all x_9, x_9 will not climb a mountain. For all x_9, x_9 is an astronaut.
For all x_9, x_9 will climb a mountain or x_9 will sleep.