A race car drives through a dirt-covered racetrack.
The car is dirty.
the car driving through a race track need not be dirty.
exists s1 x1 x2 x3 x4.(a_topic(x1) & through(x1,x4) & n_racetrack(x4) & a_dirt-covered(s1) & Theme(s1,x4) & n_drive(x1) & of(x1,x3) & n_car(x3) & of(x1,x2) & n_race(x2))
exists p1 x1.(n_car(x1) & exists x2.((x1 = x2) & n_dirty(x2)))