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 will go running if and only if x_9 will play squash. For all x_9, if x_9 goes running, then x_9 is a police officer. For all x_9, x_9 will go running if and only if x_9 is a police officer. For all x_9, x_9 will not play squash.
For all x_9, if x_9 goes running, then x_9 is playing squash. For all x_9, if x_9 goes running, then x_9 is a police officer. For all x_9, if x_9 plays squash, then x_9 is running. For all x_9, if x_9 were a police officer, then x_9 is running. For all x_9, x_9 will not go running.