[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch1][#C][C@@H1][Branch1][O][C@H1][Branch1][=Branch1][O][C@H1][Ring1][=Branch1][O][C][O][O][O][C@H1][C@@H1][Branch2][Branch1][Ring2][C@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][O][C@@][Branch2][Ring1][O][C][C@@H1][Branch2][Ring1][Branch1][C@H1][Branch1][P][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][C@@H1][Branch1][#Branch1][C@@H1][Branch1][Ring1][C][O][O][O][O][O][C][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is a linear amino trisaccharide consisting of alpha-KDN, beta-D-galactose and N-acetyl-beta-D-glucosamine residues linked sequentially (2->3) and (1->3). It has a role as an epitope. It is an amino trisaccharide and a glucosamine oligosaccharide."}]