The photographer is playing tug-of-war with a dog.
A dog is playing
If he is playing tug-of-war he is still playing.
exists e1 x1 x2 x3.(n_photographer(x1) & with(e1,x3) & n_dog(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_tug-of-war(x2))
exists e1 x1.(Actor(e1,x1) & v_play(e1) & n_dog(x1))