A man and a dog are playing tug-of-war.
A man plays with a cat.
The first sentence he's playing with a dog, not a cat.
exists e1 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_play(e1) & n_tug-of-war(x4) & subset_of(x3,x1) & n_dog(x3) & subset_of(x2,x1) & n_man(x2))
exists e1 x1 x2.(with(e1,x2) & n_cat(x2) & Actor(e1,x1) & v_play(e1) & n_man(x1))