[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a muconic semialdehyde. It is a conjugate acid of a 5-formyl-2-hydroxyhepta-2,4-dienedioate."}, {"from": "gpt", "value": "[C][Branch1][P][/C][=Branch1][Ring1][=C][/O][/C][=C][/C][=Branch1][C][=O][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]"}]