Professor Brian Norton:

If I may correct that, with respect. The contract actually provides for the maintenance and that at the end of the PPP period, which is 25 years, the buildings will return in their original state. That is a particular feature. We have taken back to DIT responsibility for information and communications technology, ICT. That would be a risk if we left it to a PPP contractor because that area is so fast-moving and the requirements that will obtain in 20 years' time are totally unpredictable, as we said earlier. We have taken on the ICT risk because that makes the PPP more viable as a project but the maintenance, renewal and refurbishment of the buildings through their lifetime is part of the PPP contract.