We cut up into these many fragments. Then we run the eggman degradation process to determine what the specific sequence is of each one of these fragments. And then we repeat the process with the different proteolytic enzyme. We get a different set of fragments and we again run admin degradation to find the sequence. And then we use the two sets of fragments to basically find what the correct order is of these fragments with respect to one another. And in that manner, we can basically find what the sequence is of amino acids in this polypeptide.