A crowded city street.
A parade is happening on the street.
The crowd is watching a parade.
exists s1 x1 x2.(a_topic(x1) & n_street(x1) & of(x1,x2) & n_city(x2) & a_crowded(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_street(x2) & on(e1,x2) & Actor(e1,x1) & v_happen(e1) & n_parade(x1))