What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_5: P_5(x_5) or Q_5(x_5). ~Q_5(a_3). forall x_5: ~P_5(x_5) or R_5(x_5).
forall x_5: Q_5(x_5) or R_5(x_5).