A orange, white, and black motorcyclist racing.
A motorcyclist sits and watches a race.
If a motorcyclist is sitting and watching, then the motorcyclist is not racing.
exists s1 s2 s3 x1 x2 x3 x4.(a_topic(s1) & subset_of(x3,s1) & n_racing(x3) & of(x3,x4) & n_motorcyclist(x4) & a_black(s3) & Theme(s3,x3) & subset_of(x1,s1) & Theme(s2,x2) & a_white(s2) & (x1 = x2) & n_orange(x1))
exists e2 e1 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x3) & v_watch(e2) & n_race(x4) & n_motorcyclist(x3) & Theme(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_race(x2) & n_motorcyclist(x1))