So this is using boxes and this is using a slightly different format. And we actually use this pictorial representation in just a moment. So basically, the brown structure is the sphingosine, this is the fatty acid and this is the sugar moiety. Now, based on this representation, we see that the spinocine actually acts as that backbone. And what that means, it connects the fatty acid and it connects that sugar molecule. Now, this entire fatty acid spinocine molecule is predominantly nonpolar.