Thank you. I think the operative word would be that we want to be at the leading edge but not the bleeding edge.
For instance, if you're looking at LED lights, the cost of that over a period of time has now reduced to where you could be a leader, and it's competitive, but right at the beginning sometimes you want to have the technology proven. The same would go for our trucks, our CNG trucks. We have a fleet of vehicles using CNG and you want to be at the front, but sometimes you want that technology to be at least proven to make sure that you're getting the value for money.
Do you have any other examples that you wanted to mention, Vince? No, okay.