[{"from": "human", "value": "Generate a molecule based on this description. The molecule is an amino disaccharide that consists of 6-O-sulfo-N-acetyl-beta-D-glucosamine having a 3,6-di-O-sulfo-beta-D-galactosyl residue attached at position 4. It has a role as an epitope. It is an amino disaccharide and an oligosaccharide sulfate."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch2][Branch1][#C][C@@H1][Branch2][Ring1][Ring1][C@H1][Branch1][=Branch1][O][C@H1][Ring1][=Branch1][O][C][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][C@H1][C@@H1][Branch2][Ring2][C][C@H1][Branch2][Ring1][Branch1][C@H1][Branch1][P][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][O]"}]