[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a N-(very-long-chain fatty acyl)-sphingoid base."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][N][C@@H1][Branch1][Ring1][C][O][C@@H1][Branch1][S][/C][=C][/C][C][/C][=C][/C][C][C][C][C][C][C][C][C][O]"}]