I'd be happy to do that, and maybe I can simultaneously rescue my answer to Mr. Falk.
I really think that the focus here is on what you've referred to as a carbon test in your discussion. You've heard that, I think, from many of the experts who have come to you in committee. The focus would be on what is the performance target. When we have performance-based objectives, we set the target and we allow ourselves to find our own way there. It's not comparing one material to another, like a wood beam compared to a steel beam. When I say that it's not of interest, it's because it's out of context. We need to have it at the level of the finished product—the whole building or the stretch of roadway or whatever it is that we're working on. It really comes down to what your mechanism is for applying that test, and have you put together a robust, fair, transparent system to do that testing? That would be my answer to your question.