[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a 4-hydroxymandelate. It is a conjugate base of a (S)-4-hydroxymandelic acid. It is an enantiomer of a (R)-4-hydroxymandelate."}, {"from": "gpt", "value": "[C][=C][C][=Branch1][#C][=C][C][=C][Ring1][=Branch1][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][O]"}]