Terrific. Yes. Thanks, Geoff. And actually, I'm glad you asked the question because on the previous question I spoke more about how we look at allocation resources on the commercial side more so than the research side. So, yes, let me first of all state that -- the first part of your question relative to how we allocate that across therapeutic areas, it's not something that we disclose accordingly. So I can't help you with that but I think I can help you with the forward question, which is, as we think forward to either partnerships or M&A, how is that going to help -- or what impact will that have, if you like, on the overall R&D spend. Now, I think, there's one aspect of that that's very important which is -- and you mentioned it a bit. But, A, we're constantly prioritizing our portfolio internally. And that is based upon making sure that we have the most-attractive programs that we're funding. Every organization has to draw a line and I think we also have to do that as well. And of course, things change, because of the nature of data that's read out, competitive environments, variety of things that happen. So the portfolio is constantly kind of evolving and moving internally based on that portfolio. And therefore, to your point, there are times when we stop studies, studies come to a natural conclusion and they've been successful and we have those to then reinvest again accordingly. Many of the structures that we've looked at in our partnerships have also been designed to be, first of all, innovation forward but also allow for some balanced risk across the portfolio and spend. For instance, with Galapagos. Our relationship with them is that they are covering trials up until Phase 2 and they take the decisions and they take the risk associated with that and all the diversity and benefit that comes from having another organization look at that differently. And then, post our opt-in of course then we would start to incur expenses on our R&D line as well. So many of our partnerships and collaborations have been designed with that in mind as well and we'll continue to do it that way to be efficient with risk versus investment. And I think that's the way we'll continue to look at moving forward. So more to come on that. I would just say -- I mean, the one thing we do disclose Geoff on the R&D line is that around 15% to 20% of the $4 billion goes into research and the remaining is into development human trials accordingly. So that I can give you. But we don't really break it down further by therapeutic area. Does that help?