What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_5: R(x_5) or Q_4(x_5). forall x_5: Q_4(x_5) -> U(x_5). forall x_5: R(x_5) -> U(x_5). forall x_5: P_5(x_5). forall x_5: P_5(x_5) -> S(x_5).
forall x_5: S(x_5). forall x_5: U(x_5).