A dog splashes through the water.
The dog is splashing and playing in a lake.
Just because a dog splashes through the water, it can be water other thank a lake.
exists e1 x1 x2.(n_water(x2) & through(e1,x2) & Actor(e1,x1) & v_splash(e1) & n_dog(x1))
exists e1 e2 x1 x2.(n_dog(x1) & in(e2,x2) & n_lake(x2) & Actor(e2,x1) & v_play(e2) & Actor(e1,x1) & v_splash(e1))