A man races a blue motorcycle on a track.
A man races a motorcycle
A "blue motorcycle on a track" is a motorcycle
all s1 x1.((n_motorcycle(x1) & a_blue(s1) & Theme(s1,x1)) -> exists x2 x3 x4.(a_topic(x2) & on(x2,x4) & n_track(x4) & for(x2,x1) & n_race(x2) & of(x2,x3) & n_man(x3)))
all x1.(n_motorcycle(x1) -> exists x2 x3.(a_topic(x2) & for(x2,x1) & n_race(x2) & of(x2,x3) & n_man(x3)))