Well some people have been talking about five to seven years, I've been saying all the way through that we're very flexible on this, and clearly if erm a bidder whether it's a management buy out with other people in the bid, others in the consortium, or an outright bid from a private sector consortium er if if they get the franchise and make clear that that's on the basis that they're going to put a lot of money into the capital investment, then clearly they will want a longer period and we have made that clear .