What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y_2, y_2 will take a plane or y_2 will climb a mountain. For all y_2, if y_2 takes a plane, then y_2 is a police officer. For all y_2, if y_2 climbs a mountain, then y_2 is a police officer.
For all y_2, y_2 is a police officer.