And let's begin by summarizing the cycle on this side. And then let's take a look at the details of each step. So ultimately, we can break down the cycle into five steps. Two of these steps, step one and two, take place in the matrix of the mitochondria of that liver cell. And the other three steps three, four and five take place in a cytoplasm of that hepatocyte, the liver cell. So let's suppose we have metabolism of amino acids that takes place inside the hepatocide.