And that generates two orthophosphate molecules. And this hydrolysis of the Pyrophosphate that is produced in step one basically makes this reaction product favored. It drives this reaction forward. So in the first step, an ATP molecule is used to transfer AMT onto the fatty acid. This releases a Pyrophosphate molecule, which subsequently hydrolyzes into orthophosphate, and this drives the reaction forward. That's why this step here is important.