Bicycle racer participates in race.
A person riding his bike in a race.
a bicycle racer is riding a bike.
exists e1 x1 x2 x3.(ne_nam_racer(x1) & (x1 = x2) & ne_nam_bicycle(x2) & in(e1,x3) & n_race(x3) & Actor(e1,x1) & v_participate(e1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(e1,x4) & n_race(x4) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_bike(x3) & of(x3,x1) & n_male(x1) & (x1 = x2) & n_person(x1))