 Okay, let's do this one. Let's do this one as the complement problem to the other one. So remember the last one was dysrotatory or however you say that word, right, con rotatory, dysrotatory, so this one, since the last one was dysrotatory that was light, so you should figure out, right, if you didn't know that before, that this one is going to be con rotatory, okay? So remember they're sticking up the same way. Con is they're going to turn the same way, okay? Dys, they turn the opposite, con, they turn the same way, okay? So the product or the mechanism, right, is the same, right? Because the electrons are moving the same way, okay? Pretty cool with that mechanism. And again, just like we did last time, those two rings are going to stay together for what was the ring. But now we're going to, of course, make a what type of molecule, you guys? A diene, very good, maybe a quick one first. And again, con, same way. So that one will keep the same as last time. This one, instead of going down, go like this, okay? So we call this con rotatory, did I do it, did I, yeah, okay, good, I guess I'll have to get through my thing. Are there any questions on that one? Okay, so clearly there's going to be these types of problems on the test, okay? So you got to just remember which way they go, heat or light. The cool thing is, is it's opposite for the sixth electron system as it is for the fourth electron system, okay? So since heat is con and the fourth electron, it's this in the sixth electron system, okay? And opposite for the other one. So if it's heat is con in the fourth electron, then it means light is con in the sixth electron system. Okay, and any more questions about this one or its partner?