Two cyclists are racing down a street.
Two persons rides bikes very fast.
Not all cyclists racing ride bikes.
exists e1 x1 x2.(down(e1,x2) & n_street(x2) & Actor(e1,x1) & v_race(e1) & n_cyclist(x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(r_very(e1) & a_fast(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_person(x1) & card_eq_2(x1))