Two dogs are running through the surf.
Two dogs running after a ball in the water
We have no idea if the dogs are running after a ball, they could be doing a number of things in the water.
exists e1 x1 x2.(n_surf(x2) & through(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(n_water(x4) & a_topic(x1) & after(e1,x3) & in(x3,x4) & n_ball(x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_dog(x1) & card_eq_2(x1))