Four dogs are playing on a field covered in snow.
The four dogs are hunting foxes in the snow.
The fact that four dogs playing doesn't imply that they are hunting foxes.
exists e1 e2 x1 x2 x3 x4.(on(e1,x2) & in(e2,x4) & n_snow(x4) & Theme(e2,x3) & v_cover(e2) & (x2 = x3) & n_field(x2) & Actor(e1,x1) & v_play(e1) & n_dog(x1) & card_eq_4(x1))
exists e1 x1 x2 x3.(n_snow(x3) & n_dog(x1) & card_eq_4(x1) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_hunt(e1) & n_fox(x2))