You have a product of compositions, and then things get a little bit more involved. But pay close attention to make sure that you're not dealing with a composition. Now the next misconception students have is even if they recognize, okay, I've gotta use the chain rule, sometimes it doesn't go fully to completion. So let's continue using this example. The chain rule here says, look, we have to take the derivative of the outer function with respect to the inner function. So if I were to say, in this case, f of x is natural log of x. f of g of x is this expression here. So if I wanna do this first part, f prime of g of x, f prime of g of x, well, the derivative of the natural log of x is one over x.