Sentence: The contestant who won the first prize, who is the judge's brother-in-law, sang dreadfully.

Linguistic integrity: acceptable

Sentence: Which packages which are to be mailed tomorrow is it possible that Sam didn't pick up until it had stopped raining?

Linguistic integrity: acceptable

Sentence: I'm going to write to the Game Warden if more than one deer my neighbor brings back.
Linguistic integrity: unacceptable