[{"from": "human", "value": "Could you provide a description of this molecule? [C][C@H1][C@H1][Branch2][Branch2][N][C@H1][Branch2][Branch2][#Branch1][C@@H1][Branch2][Branch2][C][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][=Branch1][S][C@@H1][Branch2][=Branch1][O][O][C@@H1][Branch2][=Branch1][Ring2][C@H1][Ring1][=Branch1][O][C@H1][C@@H1][Branch2][Branch1][#Branch2][C@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][O][C@@][Branch2][Ring1][P][C][C@@H1][Branch2][Ring1][O][C@H1][Branch1][P][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][C@@H1][Branch1][#Branch1][C@@H1][Branch1][Ring1][C][O][O][O][N][C][=Branch1][C][=O][C][O][O][C][=Branch1][C][=O][O][O][C][O][O][N][C][=Branch1][C][=O][C][O][O][O]"}, {"from": "gpt", "value": "The molecule is a branched amino tetrasaccharide comprising alpha-N-glycoloylneuraminyl, beta-D-galactosyl and N-acetyl-beta-D-glucosamine residues linked sequentially (2->3) and (1->4), to the galactosyl residue of which is also linked (1->3) an alpha-L-fucosyl residue. It has a role as an epitope. It is an amino tetrasaccharide and a glucosamine oligosaccharide."}]