A crowd of people gather along the side of a street.
There is something happening in the street.
There is something happening it means a crowd of people.
exists e1 x1 x2 x3 x4.(n_side(x3) & along(e1,x3) & of(x3,x4) & n_street(x4) & Actor(e1,x1) & v_gather(e1) & of(x1,x2) & n_people(x2) & n_crowd(x1))
exists p1 x1 x4.(n_street(x4) & exists e1 x2 x3.((x1 = x2) & in(e1,x4) & Actor(e1,x3) & v_happen(e1) & (x2 = x3) & n_thing(x2)))