Comment Police Police police (Score 1) 342
A better (international) example: Police police police, police police.
Understood as: Police (whom) police police, police police.
You can make an arbitrary long (true) sentences: [Police (whom) police]^n police, police [police (whom) police]^(n-1) police.
Of course, you can parse this sentence many ways, in a grammatically correct form, however the sentence is no longer tautological.