Oh, there's a lot more to it, so you need an escort or an ally. For one, it is to promote the marathon or to promote the event as an inclusive event, first of all, so when somebody with a disability wants to participate, do they have the opportunity to participate, many marathons do not have that option. So if I'm in a wheelchair, there is no option for me to participate in an event like that. So if I'm blind and I need an ally runner, with tether with having the medal being accessible, having the forms that need to be filled out to be accessible. There's so many small pieces that go into making an event accessible for various forms of disability, not just for blind runners. So, we look at every component of the entire event and make it inclusive and accessible.