Oh, that's a great question. Thank you so much for that one.
Let me give you this example. There is a locomotive in the U.S. delivering coal to a coal-fired generation plant, and it's running on LNG. It is happening, and there are companies like Caterpillar and so forth that are working on LNG for locomotives. There is LNG for marine vessels. The Staten Island Ferry is looking at that. Also, BC Ferries are looking at operating on LNG.