Two dogs are running through the surf.
two dogs are trying to catch a fish
We have no idea if they are trying to catch a fish, 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 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_catch(e2) & n_fish(x2)) & n_dog(x1) & card_eq_2(x1))