A greyhound running on a track.
Dog lying down in the middle of a dog track.
The dog cannot be lying down and be running at the same time.
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_track(x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_greyhound(x1))
exists e1 s1 x1 x2 x3 x4.(n_middle(x2) & ne_nam_dog(x1) & in(e1,x2) & of(x2,x3) & n_track(x3) & of(x3,x4) & n_dog(x4) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_lie(e1))