Two dogs in the snow.
Two animals in the snow.
Animals are playing in the snow, that happened to be dogs.
exists x1 x2.(n_snow(x2) & a_topic(x1) & in(x1,x2) & n_dog(x1) & card_eq_2(x1))
exists x1 x2.(n_snow(x2) & a_topic(x1) & in(x1,x2) & n_animal(x1) & card_eq_2(x1))