So first, in terms of balancing partner initiated, of which there are two types there, discovery, partnerships and co development versus pre-partnered. We're not trying to manage the business to a specific mix of those two. What we are doing is making sure that we're deploying our time and resources and capital and what we think are the most valuable programs to be working on. And as I said before, we want to be diversified across indications, across modalities and across risk reward profiles. In terms of capacity, one of the things we've really seen over the last year is a major improvement in our throughput in the front end of the engine, which is what we would expect and hope to have seen, given the investments that we've made over the last little while. So the total activity that's ongoing in partner initiative programs has gone up substantially. We've layered on top of that significant work on pre-partnered programs that was already being resourced, because it's part of long range technology development efforts. And we still have capacity to take on more programs at any time, so we're not capacity limited. Now, where that probably breaks down a bit is once programs move forward into the back end of the engine. So into translational science, and certainly into manufacturing and beyond where we're still constructing those capabilities, and so there's definitely a capacity limit there. And our job right now is to make sure that we are making the investments, doing the hiring, getting organized, getting economies of scale, so that capacity exists to take the programs that move into that part of the pipeline forward without having to take the foot off the gas. The second part of the question was about capital allocation. To be clear, pre-partnered programs are not about us shifting strategy in any way. So the intent is not to suddenly double down on a single thing and run it all the way through. We're taking these forward to the point where we can hand them off to partners and have created value by having solved a tough problem and anticipated partner needs. And that typically means that we're not going -- we don't expect to incur large costs, at least in the foreseeable future connected with those. And we do believe that as a business, that that has the potential to be cash generating in the near to medium term as we had those over. So, we actually think that the cash flow profile the pre-partnered programs is a positive feature that complements well, the discovery initiative partnerships, which because they are mostly connected with royalties have great cash flow, but it's substantially, on substantially longer timelines because it requires ultimately approval and delivery of therapies to patients.