[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is an amino acid with a structure in which a phenyl ring is bonded to the alpha-carbon of glycine. It has a role as a human metabolite."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}]