[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is dicarboxylate anion of sinapoyltartronic acid. It is a conjugate base of a sinapoyltartronic acid."}, {"from": "gpt", "value": "[C][O][C][=C][C][=Branch1][O][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][O][O][C][/C][=C][/C][=Branch1][C][=O][O][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]"}]