Two dogs are wrestling in the grass.
Two dogs playing at the park.
The grass does not have to be in a park.
exists e1 x1 x2.(n_grass(x2) & in(e1,x2) & Actor(e1,x1) & v_wrestle(e1) & n_dog(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_park(x3) & a_topic(x1) & at(e1,x3) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_dog(x1) & card_eq_2(x1))