[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a muconic semialdehyde compound having a hydroxy substituent at the 2-position and a methyl substituent at the 5-position. It is a muconic semialdehyde and an alpha,beta-unsaturated monocarboxylic acid."}, {"from": "gpt", "value": "[C][/C][=Branch1][Ring1][=C][/O][/C][=C][/C][=Branch1][C][=O][C][=Branch1][C][=O][O]"}]