So these two molecules are related to one another by the fact that they're rotated some amount of degrees about this carbon carbon bond. And these guys are also known as confirmers. Now, there are many different types of conference that exist, right? There's one conference, a second conference, a third conference, a fourth conference, and so on. Two important conference that you should know are the Eclipse conference and the staggered confirmer. Now, Eclipsed simply means that these two ch bonds are eclipsed.