A man and a dog are playing tug-of-war.
A man uses a rope to play with his dog.
You can not infer he is using a rope.
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 p1 x1 x2 x3.(Theme(e1,p1) & Recipient(e1,x2) & Actor(e1,x1) & v_use(e1) & exists e2.(with(e2,x3) & Actor(e2,x1) & v_play(e2)) & n_dog(x3) & of(x3,x1) & n_male(x1) & n_rope(x2) & n_man(x1))