A black dog is in a dog race.
A dog is racing in a tournament.
A black dog is a type of dog, and a race implies racing.
exists p1 s1 x1.(exists x2 x3.(in(x1,x2) & n_race(x2) & of(x2,x3) & n_dog(x3)) & n_dog(x1) & a_black(s1) & Theme(s1,x1))
exists e1 x1 x2.(in(e1,x2) & n_tournament(x2) & Actor(e1,x1) & v_race(e1) & n_dog(x1))