[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is the (S)-enantiomer of carnitine. It is a conjugate base of a (S)-carnitinium. It is an enantiomer of a (R)-carnitine."}, {"from": "gpt", "value": "[C][N+1][Branch1][C][C][Branch1][C][C][C][C@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][O]"}]