and so you have put on a tgb, and you have to walk on the level and then drop the stairs to actually get where you want to go, and fine if you don't have the long legs. and on the other hand, the two differences from that, that is five... because they have to have the same platform height for the different countries they don't have ada. we do. and we need to do or abide by it and building a new facility. and japanese system of 40 or 50 years ago and it is designed the trains and the platforms to be identical and that is the 49 inch that they use. and the united states has one example that they expressed on the east coast where they are using 48 inches and the rest of the world is doing it differently. now, i have yet to introduce the subject but we are talking about the benefits of boarding heights, and with the transbay. and just as you see, when you start off with the commuter rail in the morning, and there are the long distance rail, you need the trains of either end and you cross off from one end and the dead ahead. and 50 or 300 miles. and in storage for start up will be better