[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a L-alpha-amino acid zwitterion."}, {"from": "gpt", "value": "[C][/C][=C][/S][=Branch1][C][=O][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1]"}]