A man playing a saxophone.
The man is playing on a city street.
Playing a saxophone does not imply playing on a city street.
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_saxophone(x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(n_man(x1) & on(e1,x2) & n_street(x2) & of(x2,x3) & n_city(x3) & Actor(e1,x1) & v_play(e1))