What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_3: R(x_3) -> R_1(x_3). forall x_3: S_3(x_3) or R(x_3). forall x_3: S_3(x_3) -> W_2(x_3). forall x_3: W_2(x_3) <-> R_1(x_3).
forall x_3: W_2(x_3) -> R_1(x_3). forall x_3: R_1(x_3) -> W_2(x_3).