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4. You must not condition registration or entry upon the user taking any action using any Facebook features or functionality other than liking a Page, checking in to a Place, or connecting to your app. For example, you must not condition registration or entry upon the user liking a Wall post, or commenting or uploading a photo on a Wall.
5. You must not use Facebook features or functionality, such as the Like button, as a voting mechanism for a promotion.

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