[{"from": "human", "value": "Generate a molecule based on this description. The molecule is often attached to a Cer aglycon."}, {"from": "gpt", "value": "[C][Branch2][Ring1][=C][C@@H1][C@@H1][Branch2][Ring1][Branch2][C@@H1][Branch1][N][C@H1][Branch1][Branch2][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][O][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][O]"}]