A young boy pounding on an anvil.
A child is sleeping.
If he is pounding on an anvil, he is not sleeping.
exists e1 s1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_anvil(x3) & Actor(e1,x2) & v_pound(e1) & (x1 = x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1.(Actor(e1,x1) & v_sleep(e1) & n_child(x1))