So some people say this is early repolarization, this is our plateau and this is our repolarization period. So this is our repolarization when we basically return it back to when we return it back to normal. And this is our depolarization, while other people say this entire section is our depolarization, because what this does is it maintains a positive concentration on the inside of the cell. So in a way, we can imagine that what the plasto phase does is it extends the time of contraction. It extends the period of time where our inside of the cell is basically positive with respect to the outside. So this is phase number two, our plateau phase.