Three greyhounds are in a dog race at the track.
dogs are racing
Three greyhounds are dogs.
exists p1 x1 x4.(n_track(x4) & exists x2 x3.(in(x1,x2) & at(x2,x4) & n_race(x2) & of(x2,x3) & n_dog(x3)) & n_greyhound(x1) & card_eq_3(x1))
exists e1 x1.(Actor(e1,x1) & v_race(e1) & n_dog(x1))