People crossing a city street.
A crowd by the intersection.
You can not infer it's at an intersection.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_cross(e1) & n_street(x3) & of(x3,x4) & n_city(x4) & (x1 = x2) & n_people(x1))
exists x1 x2.(n_intersection(x2) & a_topic(x1) & by(x1,x2) & n_crowd(x1))