[{"from": "human", "value": "Describe this molecule. [C][=C][C][Branch1][=Branch1][O][C][Ring1][Branch1][=O][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][S][=Branch1][C][=O][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is an organosulfonate oxoanion and a butenolide. It is functionally related to an acetate."}]