[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is an alpha,beta-unsaturated monocarboxylic acid that is acrylic acid substituted by a hydroxy group at position 2. It has a role as a human metabolite. It is functionally related to an acrylic acid."}, {"from": "gpt", "value": "[C][=C][Branch1][=Branch1][C][=Branch1][C][=O][O][O]"}]