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, if x_9 were bored, then x_9 is sleeping. For all x_9, x_9 is bored. There is at least one x_9 for which x_9 will play tennis if and only if x_9 will sleep.
For all x_9, x_9 will sleep. There is at least one x_9 for which if x_9 plays tennis, then x_9 is sleeping. There is at least one x_9 for which if x_9 sleeps, then x_9 is playing tennis.