It will depend on the efficiency of batteries. There may be some points where we cannot have catenary.... In this case, typically you run your train on different supplies, so we'll see what is available in terms of technology with the private partners.
For the hydrogen, it's an interesting debate. You may have seen that one of the first significant hydrogen trains developed in Germany has actually abandoned the technology because full electric was just more efficient and cheaper to operate. I think that's a lesson learned from a larger operator. We just took notice of it.