What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? P_3(a_3). forall x_16: Q_16(x_16). forall x_16: W_2(x_16).
exists x: P_3(x). forall x_16: Q_16(x_16) and W_2(x_16). forall x_16: W_2(x_16) and Q_16(x_16).