[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch2][=Branch1][P][C][C@@][Branch1][#C][O][C@H1][Ring1][=Branch1][C@@H1][Branch1][#Branch1][C@@H1][Branch1][Ring1][C][O][O][O][Branch1][=Branch1][C][=Branch1][C][=O][O][O][C@H1][C@H1][Branch2][Ring2][P][C@H1][Branch2][Ring2][O][O][C@H1][Branch1][Branch1][C@@H1][Ring1][=Branch1][O][O][C@H1][C@@H1][Branch2][Ring1][N][C@H1][Branch1][#C][O][C][Branch1][#Branch2][C@@H1][Ring1][=Branch1][N][C][=Branch1][C][=O][C][O][C][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][C][O][O][O]"}, {"from": "gpt", "value": "The molecule is a linear amino trisaccharide comprising N-acetyl-alpha-neuraminic acid, beta-D-galactose and N-acetyl-6-O-sulfo-D-glucosamine residues linked sequentially (2->3) and (1->3). It has a role as an epitope. It is an amino trisaccharide, a glucosamine oligosaccharide and an oligosaccharide sulfate."}]