I'm not sure yet. We haven't got all the data. I don't think there is a major period or space that overlaps. I think you're right. Where there is any overlap, it's dealt with in the same way as there's overlap now. In many places around the world people are claiming the same territory, and it is a bilateral discussion. I couldn't actually say if I have knowledge that there would be a significant overlap.
We'd have to try to get you that answer. You have to recognize that some of the data collection is incomplete. We're still taking a look at what's going on.