[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a galactosylceramide obtained by formal condensation of the carboxy group of icosanoic acid with the amino group of beta-D-galactosyl-(1<->1')-(4E,14Z)-sphingadienine. It has a role as a marine metabolite. It is functionally related to a sphinga-4E,14Z-dienine and an icosanoic acid."}, {"from": "gpt", "value": "[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][Branch2][Ring1][Branch2][C][O][C@H1][C@@H1][Branch1][P][C@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][O][O][C@@H1][Branch1][S][/C][=C][/C][C][C][C][C][C][C][C][/C][=C][\\C][C][C][O]"}]