Two cars race down a track.
Two cars are standing idly.
two cars who race cannot be two cars standing at the same time
exists x1 x2 x3.(a_topic(x1) & down(x1,x3) & n_track(x3) & n_race(x1) & of(x1,x2) & n_car(x2) & card_eq_2(x1))
exists e1 s1 x1.(a_idly(s1) & Manner(e1,s1) & Actor(e1,x1) & v_stand(e1) & n_car(x1) & card_eq_2(x1))