Many cyclists race down a road in uniform.
There are people in a race.
Cyclists can race down a road and not be in a race.
exists x1 x2 x3 x4.(a_topic(x1) & down(x1,x3) & in(x3,x4) & n_uniform(x4) & n_road(x3) & n_race(x1) & of(x1,x2) & n_cyclist(x2) & n_quantity(x1))
exists p1 x1 x2.(in(p1,x2) & n_race(x2) & exists x3.((x1 = x3) & n_people(x3)))