The four bicyclists are riding through the desert.
They are in a race
four bicyclists riding through the desert doesn't imply they are in a race
exists e1 x1 x2.(n_desert(x2) & n_bicyclist(x1) & card_eq_4(x1) & through(e1,x2) & Actor(e1,x1) & v_ride(e1))
exists p1 x1.(n_thing(x1) & exists x2.(in(x1,x2) & n_race(x2)))