 I think the way they've described it is that they've basically figured out where they think the price is, and then they've put in a cushion, if you will, where they've allowed a certain amount above that price that they think might be right to allow some flexibility. And that cushion is variable depending on the product. So there is a demand-weighted index incorporated into it. So products that are in more demand, there's going to be a little bit less cushion on them, whereas products that maybe aren't as in demand, there might be a little bit more of a cushion provided because they're not