[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a 4-hydroxybenzoate ester."}, {"from": "gpt", "value": "[C][C][O][C][=Branch1][C][=O][C][=C][Branch1][O][C][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][C][O][O]"}]