A woman is riding her bicycle down the street.
a woman in a bike race
Not all biking is done for a race.
exists e1 x1 x2 x3.(n_street(x3) & down(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bicycle(x2) & of(x2,x1) & n_female(x1) & n_woman(x1))
exists x1 x2 x3.(a_topic(x1) & in(x1,x2) & n_race(x2) & of(x2,x3) & n_bike(x3) & n_woman(x1))