A group of jockeys during a horse race.
They are in the kentucky derby.
Just because the jockeys are in a horse race doesn't mean they in kentucky derby.
exists x1 x2 x3 x4.(a_topic(x1) & during(x1,x3) & n_race(x3) & of(x3,x4) & n_horse(x4) & of(x1,x2) & n_jockey(x2) & n_group(x1))
exists p1 s1 x1 x2.(n_derby(x2) & a_kentucky(s1) & Theme(s1,x2) & n_thing(x1) & in(x1,x2))