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 were a carpenter, then x_8 is a police officer. For all x_8, if x_8 were sad, then x_8 is a carpenter. For all x_8, x_8 is sad or x_8 will climb a mountain. For all x_8, if x_8 climbs a mountain, then x_8 is a carpenter. There is at least one x_8 for which x_8 is excited.
For all x_8, if x_8 were sad, then x_8 is a police officer. For all x_8, if x_8 climbs a mountain, then x_8 is a police officer. For all x_8, x_8 is a carpenter.