A large group of people fill a street.
People in the street are part of a parade.
Fill a street does not imply being part of a parade.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_fill(e1) & n_street(x3) & of(x1,x2) & n_people(x2) & n_group(x1) & a_large(s1) & Theme(s1,x1))
exists p1 x1 x2.(n_street(x2) & exists x3 x4.((x1 = x3) & of(x3,x4) & n_parade(x4) & n_part(x3)) & in(x1,x2) & n_people(x1))