So if we start off with some x, you input it, the first thing that you do is you take the square root of it. So you are going to take the square root of the input to produce the square root of x. And then what do you do? Well, you take the square root, and then you take the natural log of that. And so then you take the natural log of that. So you could view that as inputting it into another function that takes the natural log of whatever is inputted in. I'm making these little squares to show what you do with the input.