 it's not you can't really say classes i mean you could call them courses but since it's not a degree program yeah you know how long are they coming for and what are their goals in getting out yeah look i mean we run programs as short as two or three days some of them are as long as six weeks you know sometimes with companies we do multiple modules over eight nine months one big trend that we've certainly seen is that companies have moved away from just doing this as a sort of nice to have you know