Two bicyclists in a race with helmets.
two guys on bikes
Bicyclists can be considered as guys on bikes.
exists x1 x2 x3.(a_topic(x1) & in(x1,x2) & with(x2,x3) & n_helmet(x3) & n_race(x2) & n_bicyclist(x1) & card_eq_2(x1))
exists x1 x2.(a_topic(x1) & on(x1,x2) & n_bike(x2) & n_guy(x1) & card_eq_2(x1))