Jeffrey Maggioncalda
Analyst
Yes, thanks, Jason. So Ken go through I think the cohort building but generally speaking, large swaths. First piece of the puzzle is sourcing a degree that A) is source of all that's the supply plan, like does a college want to give you the degree, the most elite ones are harder to get. And then the - second question is for the degrees that you bring on well students in that region or on the platform actually bite on the demand side. When we go out to source, generally, it takes, you know, some number of years often, what you'll see, and I mentioned this as to Ken in the past. We are successfully bringing on more reprograms from the same degree partners. And we like that, that's great. That was part of that tiered pricing model that we went after we're definitely playing for both scale and scope, we believe that you can create variations of degrees on Coursera, when a university has more degrees on Coursera. Because you can mix and match courses, electives, a pieces like that. So generally speaking, it's harder to get started. But once you do, and you have a portfolio of degrees, you can mix and match them with a little bit more flexibility. And the way that the cohorts go, you know, first you have to generate initial awareness and interest. And if it's a new degree in a new region, it takes a little bit longer. And then typically, there are three starts per year, ideally has, you know, more than that, but often there's three starts per year. And then those degree programs are often two years, sometimes three, if it's a British bachelor's degree for it's a U.S. degree, although these completion degrees could be done more quickly, but they're multiyear. And so, you get a student in early cohort, maybe there's the first cohort. They'll be around, ideally for a couple years, three years, and then the next cohort starts 90 days later, and then they will layer on so it builds over time. And I think when we enter new regions I think the initial cohort size starts growing. And then you get more cohorts in there, as you kind of start filling up these slots and typically happens over multiple years. Ken anything you'd add to that?