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 will play tennis. For all x_8, x_8 is a police officer if and only if x_8 will sleep. For all x_8, x_8 is a police officer.
For all x_8, x_8 will play tennis and x_8 is a police officer. For all x_8, x_8 is a police officer and x_8 will play tennis. For all x_8, if x_8 were a police officer, then x_8 is sleeping. For all x_8, if x_8 sleeps, then x_8 is a police officer.