Infinite Sweeps

There are several sweeps for $10K that end 3/31, $15K for 4/30, and $25K for 5/31.  
If you enter one, are you entering all of them? Or should you do an entry for each one.
For example - Color Your Kitchen $10K, Pay Your Bills $10K, Kitchen Makeover $10K - are they all the same sweep giving away one prize of $10K? Or are there 3 separate prizes of $10K each?

I think they are affiliated  but  they are separate contest so you should enter each one separately.