In Canada we have what's called a Virginia flue-cured tobacco cigarette market. It's basically Virginia tobacco flue-cured leaf, and you usually don't need additives for that tobacco. However, what we've seen is that when you manufacture the paper you need some chemicals, and some of those chemicals could be mistaken to be minerals, because they're based on silicium or on potassium, and so forth. That's why I put some emphasis earlier on the fact that we were tracking mineral nutrients; that we don't want to capture, for example, calcium carbonate that is used to make the paper, or some other compound.
Maybe one thing I should add for the schedule is that the schedule as presented is part of an amendment that is targeted to youth. But if later on we find there are some compounds that may have an impact on addictiveness or toxicity, obviously we would want to also use the schedule to target those compounds.