[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch2][Branch1][N][C][C@@][Branch2][Ring1][Ring2][O][C@H1][Ring1][=Branch1][C@@H1][Branch1][N][C@@H1][Branch1][Branch2][C][O][C][=Branch1][C][=O][C][O][O][Branch1][=Branch1][C][=Branch1][C][=O][O][O][C][C@@H1][C@@H1][Branch2][Ring1][Branch1][C@@H1][Branch1][P][C@H1][Branch1][Branch2][C][Branch1][Ring2][O][Ring1][=Branch1][O][N][C][=Branch1][C][=O][C][O][O][O]"}, {"from": "gpt", "value": "The molecule is an amino disaccharide consisting of an N-acetylglucosamine having an N-acetyl-9-O-acetylneuraminic acid attached via an alpha-(2->6)-linkage. It has a role as an epitope."}]