What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? S_12(a_12) <-> q. ~p_8. p_8 <-> q. forall x_12: R_12(x_12) <-> S_12(x_12).
S_12(a_12) -> q. p_8 -> q. q -> S_12(a_12). q -> p_8. ~q. forall x_12: R_12(x_12) -> S_12(x_12). forall x_12: S_12(x_12) -> R_12(x_12).