[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a metabolite found in or produced by Escherichia coli (strain K12, MG1655)."}, {"from": "gpt", "value": "[C][=Branch1][#Branch1][=C][C][=Branch1][C][=O][O-1][C][=C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]"}]