And out of these three different types of groups, the most specific type of group is the suicide inhibitor. And the least specific type of group is the group specific inhibitor. So let's begin by discussing the group specific inhibitor. Well, the group specific inhibitor is an example of an Irreversible inhibitor that binds to and reacts with specific side chain groups of amino acids. For instance, on the board we have two examples of group specific inhibitors. We have Idoscenemide that reacts with Sistine side chains, and we also have di isopropyl phosphoridate, or simply DIPF that reacts with serine amino acids.