two dogs play in the water.
The pets are sleeping
The pets cannot play and sleep at the same time.
exists e1 x1 x2.(n_water(x2) & in(e1,x2) & Actor(e1,x1) & v_play(e1) & n_dog(x1) & card_eq_2(x1))
exists e1 x1.(n_pet(x1) & Actor(e1,x1) & v_sleep(e1))