A dog is playing in water on a beach.
a dog sleeping on a bed
A dog cannot be playing in water while sleeping.
exists e1 x1 x2 x3.(on(e1,x3) & n_beach(x3) & in(e1,x2) & n_water(x2) & Actor(e1,x1) & v_play(e1) & n_dog(x1))
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_bed(x3) & Actor(e1,x2) & v_sleep(e1) & (x1 = x2) & n_dog(x1))