So, we have 625 milliliters per minute is the renal plasma flow that enters our glomerulus every single minute. And because it's freely filtered, 125 milliliters is cleared every single minute. But when the filtering is traveling within our tubular section of our nephron, a small amount, some amount is actually reabsorbed back into our body. Now, in this case, it was fully reabsorbed. So we have a renal clearance of zero, but in this case, only a slide and mouth was reabsorbed. And that means whatever the renal clearance is, it will be slightly less than 125 ML/minute, but it will be greater than 0 ML/minute.