Consider the following premises. forall x_6: W_1(x_6) or ~Q_6(x_6). forall x_6: P_4(x_6) -> W_1(x_6). forall x_6: P_4(x_6) or Q_6(x_6). Can we infer Q(a) from them?
We cannot infer that from the premises. Therefore the answer is no.