 Let's try this one. So this one, I believe, said predict the major product for the following reaction. So why don't we start with what's the major product? You don't have to name it. Just tell me how to draw it. Start with the benzene ring. So the benzene ring doesn't react with this hydrogen, I guess. Is that what you're telling me? No, it's stable. The benzene ring. And now what? For carbons, it's an alkane. It's an alkane, so like Charlie Brown, right? So one, two, three, four. One, two, three, four, like that. So is that the final product? OK, wonderful. Yes. So what we're saying here is this hydrogen, hydrogenates both the alkene and the alkyne, right? What is this palladium on carbon doing here? The catalyst. The catalyst. And what does that do? What does the catalyst do? That's the way it speeds up reaction. It does what, I'm so sorry? This is the way it speeds up the reaction. Yeah, it speeds up the reaction. So this reaction wouldn't happen. It's like my example of Professor Heave moving the boxes from here to here. The boxes can get moved there, but imagine if there was no Professor Heave doing it, right? It would take years and years if those boxes would move at all. So that's what the catalyst is doing. So again, right? Well, I thought we said that hydrogenates pi bonds. Well, we had two pi bonds there, which both got hydrogenated, one there that got hydrogenated. But these ones didn't, and why don't we say they didn't? Because the bending ring is stable. The bending ring itself is stable. And it's because it's aromatic. I know we haven't gone over Huckel's rule yet, but it's going to be one of the first things you do in organic too. And that's going to tell you why these things are really stable. But I want you to remember that bending rings are stable in and of themselves. Yes, sir? If there were only one double bond within the ring, that would be hydrogenated. That would be hydrogenated, because that is not a bending ring. Yeah, so I guess, for example, what we're saying here, what Mike is saying, is if it was like this, right, the product would be that. So any questions on that? So everybody's cool with those differences, right? OK.