So the only ones which have a small hydrophobic side chain are glycine Alamine, as well as glycine at the end. So the only two peptide bonds that are going to be cleaved are this peptide bond. So on the carboxyl end of glycine, as well as this one on the carboxyl end of Alanine. So Lysine and Phenylalanine are not small ones, this one has a large long one and it's positively charged. Although this one is non polar hydrophobic, it's too large to actually fit into this pocket because these two valleyses block the majority of that pocket. And even though this is a glycine, there's no bond on the carboxyl side.