The musher is pressing the dogs to the finish line.
The dogs are running from a bear in the woods.
If the musher is pressing the dogs then they cannot be running from a bear.
exists e1 x1 x2 x3 x4.(n_line(x3) & of(x3,x4) & n_finish(x4) & n_dog(x2) & n_musher(x1) & to(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_press(e1))
exists e1 x1 x2 x3.(n_wood(x3) & n_dog(x1) & in(e1,x3) & from(e1,x2) & n_bear(x2) & Actor(e1,x1) & v_run(e1))