I see. I will be quite brief.
On the issues with the southeast tower, one of the lessons learned was that we were able to do investigations. We were able to understand and to anticipate what we were going to find. In fact, that project came in under budget.
We were satisfied that we had learned lessons that were if you do exploratory openings and do testing.... The analogy is that you have a home where you don't know what you're going to find when you open up the walls. If you can do preliminary investigations, then the lessons learned in that will inform the tender documents and will help to inform the contractors in their work, and the project will go more smoothly than it might if you did not do that preliminary investigation.