[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a member of penicillanic acids."}, {"from": "gpt", "value": "[C][C][Branch2][Ring1][=Branch2][C@@H1][Branch1][P][N][C@H1][Branch1][Branch2][S][Ring1][Branch1][=Branch1][C][=O][=O][C][C][Ring1][#Branch1][=O][C][=Branch1][C][=O][O][C]"}]