A dog running through the sand.
A dog is playing  outside.
A dog who is running is usually playing. Sand is usually outside.
exists e1 x1 x2 x3.(n_sand(x3) & a_topic(x1) & through(e1,x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_dog(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_outside(x2) & n_dog(x1))