[SAJ]

Ah, the old puzzle -- punctuate this to make one grammatically correct sentence:

Jane where John had had has had had had had had had had had had the teacher's approval

(Good luck, it's rather tricky)

[P.O.E.]

Jane, where John had had "has had", had had "had had", had "had had" had the teacher's approval.

One of my all time-faves:
that that is is that that is not is not that that is is not that that is not that that is not is not that that is