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