Well, basically, a special type of enzyme known as acetylcholine esterase goes on and binds onto our acetylcholine that is bound onto our channel. So that is shown in this diagram. So we have the protein channel. We have our acetylcholine bound to the protein channel, and we have the enzyme acetylcholine estherase that bind onto this acetylcholine. And it breaks it down, it divides it. It hydrolyzes aracetal choline into an acetate molecule and into a choline molecule.