What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? s_3 -> q_19. p_16 <-> s. p -> s. ~p_16. s_3.
q_19. ~p_16 and s_3. s_3 and ~p_16. p_16 -> s. s -> p_16. ~s.