So one, two three, this is omega three, this would be omega six and this would be omega nine. In fact, the omega three six nine fatty acids that you commonly hear of are exactly these acids. Omega basically means that beginning carbon on the other side. And the number basically designates the position of that double bond with respect to that Omega reference atom. So two different ways to basically describe the position of that double bond within that particular fatty acid. Now the final thing I'd like to focus on is the properties of these fatty acids and what basically determines the properties of these fatty acids.