People are crossing a city street intersection.
There is a group of people.
Multiple people are a group of people.
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_cross(e1) & n_intersection(x2) & of(x2,x4) & n_street(x4) & of(x2,x3) & n_city(x3) & n_people(x1))
exists p1 x1 x2 x3.((x1 = x2) & of(x2,x3) & n_people(x3) & n_group(x2))