I can answer that.
As part of our activities we actually look at different technologies, and we look at it for small companies like Mr. Gradek's. We also look at it for maybe larger companies that are interested in certain technologies. So we actually evaluate a lot of these technologies. The issue is not as simple as we think it is. There are many factors that come in.
If I talk about recovering bitumen or oil from the tailings ponds or others using hydrophobic surfaces, or oliophilic surfaces, there are about three or four similar ones started in the eighties by somebody called Kryer. It's the Kryer process and Kryer used to work at ARC. He developed this sieve through which you pass the oil...and it goes out.