A dog races along the grassy track.
The dog is running in the water.
grassy and water are not the same
exists s1 x1 x2 x3.(n_track(x3) & a_grassy(s1) & Theme(s1,x3) & a_topic(x1) & along(x1,x3) & n_race(x1) & of(x1,x2) & n_dog(x2))
exists e1 x1 x2.(n_water(x2) & n_dog(x1) & in(e1,x2) & Actor(e1,x1) & v_run(e1))