What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? w -> q_16. q_16 -> p_6. p_6 -> p_2. p_2 -> w. q_16 -> w.
w -> p_6. q_16 -> p_2. p_6 -> w. p_2 -> q_16. w <-> q_16. q_16 <-> w.