Two bicyclists race against each other.
Two children are playing in the park.
The children may not be bicyclists.
exists x1 x2.(all x3.(n_other(x3) -> (a_topic(x1) & against(x1,x3))) & n_race(x1) & of(x1,x2) & n_bicyclist(x2) & card_eq_2(x1))
exists e1 x1 x2.(n_park(x2) & in(e1,x2) & Actor(e1,x1) & v_play(e1) & n_child(x1) & card_eq_2(x1))