 Okay, so let's try this same sort of procedure. Draw this condensed and bottom line structures. Okay, again, the first thing you really want to do is label your longest carbene chain. So you go one, two, three, four, five. So you've got one, two, three, four, five. And off of your third carbene, you've got a C carbene with two methyl groups on it. And you have another methyl group on that, too. So you've got that structure there. Then if you want to do the condensed structure, just squish it all behind. We're doing this together. So we've got CH3, CH2, CHC. You can do this two ways. Let's do it this way. CH3, CH3, CH3. Oh, and you want to name it. Okay. So we've got this group here. It's called the tert-butyl group. And we've got one, two, three, four, five. So that's a pentane. And the tert-butyl group's on the third carbene. So we call this CH3, Tert-butyl.