 I like to describe what we do as kind of analogous to the Nespresso coffee capsule. We don't grow the coffee. We procure it from green hydrogen suppliers, but we package it in a capsule and that capsule makes it easy to transport over the existing shipping network. We get it to the airport and then we plug the capsules directly into the aircraft. So there's no expensive infrastructure that has to be built. This allows us to deploy hydrogen in the next couple of years to make passenger aviation with zero emissions a reality.