And the only difference here is it has one more carbon group than in that particular case. So we have actually, let's draw it in a slightly different manner, show the resonance stabilized form. Okay, so now we finish off this group by finishing off with the alpha terminal carboxyl group. Okay, so this is our tripeptide. Now, once we draw our tripepptide, we now have to find and label all those groups on our peptide that can readily lose or gain an h atom. And we have to write down their PKA values.