[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is the simplest member of the class of a benzenesulfonic acids that consists of a benzene carrying a single sulfo group. It is a conjugate acid of a benzenesulfonate."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][S][=Branch1][C][=O][=Branch1][C][=O][O]"}]