[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][=C][Branch2][Ring1][C][C][=Branch1][Ring2][=C][Ring1][=Branch1][/C][=C][/C][=Branch1][C][=O][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a 4-(2-carboxyphenyl)-2-oxobut-3-enoic acid where the C=C double bond has (E)-configuration."}]