What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall z_3: P_4(z_3) or ~Q(z_3). forall z_3: S(z_3) -> Q(z_3). forall z_3: U_4(z_3) -> S(z_3).
forall z_3: U_4(z_3) -> Q(z_3). forall z_3: Q(z_3) -> P_4(z_3).