[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a sphingomyelin in which the total number of carbons in the sphingoid base and fatty acyl groups is 44 with 6 double bonds."}, {"from": "gpt", "value": "[C][N+1][Branch1][C][C][Branch1][C][C][C][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C@@H1][Branch1][Ring1][C][O][N][C][=O]"}]