dog running on two legs
The dog is running.
Both subjects are running
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_leg(x3) & card_eq_2(x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_dog(x1))
exists e1 x1.(n_dog(x1) & Actor(e1,x1) & v_run(e1))