I'll start, and then I will ask Ms. Cheng to provide more detail.
Again I think that fundamentally what we're doing is we're asking what are those risks, right? When we're looking at a program, we're trying to see what could go wrong in that area, what could cause the department not to deliver those programs or not to deliver them well.
Ms. Cheng has been involved in this at a more detailed level than I, so I'll ask her to provide you a bit more detail.