Yeah. Thanks very much. Again, I don't -- I think we've worked out, what we think is an appropriate initial clinical plan of dose escalation and dose expansion cohorts of where we'd like to study that ADC. And you'll recall that this ADC was designed, to try and take advantage of the multiple tumor types for this to target of interest. And take advantage of the fact that there are, different expression levels in this patient population that you might want to target, not just high expressers. And so we'd like to, as early as we can in Phase 1, understand our ability to work across multiple tumor types to be effective. To work across, high expressers in all of those tumor types and to work towards how we see we might impact, medium and low expressers across those tumor types. So I think once this study is up on clinical trials, we'd be happy to talk more about the design of how this study is going. I mean, obviously, there is a current product commercially available in a certain patient population here. So, how we go about testing that patient population is a little more complicated. And so we have some thoughts on how to do that. That'll be a part of the clinical study. It's unfortunate what's happened to the Mersana molecule, so late in clinical development. But, having studied [ZW] (ph) for a long time as a biological target, we did have the same complication that there might be a competitive product there ahead of us which does make the clinical development of regulatory pathway more complicated, unfortunate clinical study outcome, for that agent, and that company, but certainly makes the opportunity attractive from being a cleaner and more simple clinical development and regulatory pathway and the ability for us to if we go quickly with the right molecule, be in a position where we could be first in class, in that indication. So, it's actually a more exciting thing for us to pursue. And one of the reasons we're trying to accelerate this, to move as quickly as we can, with our TOPO payload and the antibody we designed, the DAR we selected, and our understanding of the target and our preclinical packages day, which looks excellent.