[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a sphingomyelin 34:0 in which the N-acyl group and sphingoid base are specified as hexadecanoyl and sphinganine respectively. It has a role as a human metabolite and a mouse metabolite. It is a sphingomyelin 34:0 and a N-acylsphinganine-1-phosphocholine. It is functionally related to a hexadecanoic acid."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C@H1][Branch2][Ring2][=N][C@H1][Branch2][Ring1][Branch1][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C][N+1][Branch1][C][C][Branch1][C][C][C][N][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O]"}]