Basically 1 word story.
But here's the catch:
If the previous 3 words are all different from each other, you MUST repeat one of them instead of using your own word!
(Otherwise, do whatever.)
WE BEGIN ... NOW! *Photofinish music plays*
EDIT: The story so far:
In A World In A World Where Words Word Wanted Criminals Wording Criminals with with animals with one animal with one one tail and