> (load "lisp07-11.lisp")  
> (generate 'sentence)
(ROBIN HIT PAT)
> (generate 'sentence)
(SHE LIKED THE BALL)
> (generate 'sentence)
(THE LONG MAN LIKED LEE)
> (generate 'sentence)
(KIM TOOK PAT)
> (generate 'sentence)
(A BLUE LITTLE BLUE WOMAN ON PAT TOOK SHE WITH A BIG LONG GREEN LITTLE LITTLE
  BIG LONG LITTLE GREEN GREEN BLUE BIG BLUE MAN ON ROBIN BY A LITTLE MAN TO A
  TABLE TO ROBIN
)