Now, of course, one of the other points that I would make is that what we've seen in Europe is that where there's been extensive investment in passenger rail, now countries are actually shutting down flights where passenger rail services exist. This is something that is beyond this particular debate, but we are actually limited in New Zealand because the privatisation of our railways for many decades means that we're not in a position to have really great passenger services. We're in a position of playing catch-up, and that limits New Zealanders' ability to be able to get around the country while reducing emissions. So, obviously, that's more than Air New Zealand could address, but being able to look into sustainable fuels is certainly something that they will have to do, and they would be aware that they have to do anyway, to be able to be successful as a company in the future.