What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? w_3 -> r. p_8 -> w_3. w <-> p_8. ~r. r -> p_8.
~w_3. w_3 -> p_8. p_8 -> r. r -> w_3. w -> p_8. p_8 -> w.