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, x_8 is a janitor or x_8 will climb a mountain. For all x_8, x_8 is not a janitor or x_8 will cook. For all x_8, x_8 is excited. There is at least one x_8 for which if x_8 were a mechanic, then x_8 is not cooking. For all x_8, if x_8 climbs a mountain, then x_8 is not excited.
For all x_8, x_8 will not climb a mountain. For all x_8, x_8 will climb a mountain or x_8 will cook.