So let's go back to this question. Once we know what the sequence is of these individual segments, how do we order those segments together? So what we have to do is so we take this polypeptide and we first expose it to one type of cleaving agent, and then we take that same polypeptide again and we expose it to another different type of Cleaving agent. So once we expose it to these two different cleaving agents, we have two sets of fragments. And then we can use the overlapping regions of those fragments to basically piece the information together, just like in a puzzle. So to see exactly what we mean by that, let's take a look at the following example.