[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C@H1][C@H1][Branch2][#Branch1][Branch2][C@H1][Branch2][#Branch1][Ring1][C@@H1][Branch2][=Branch1][=C][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][Branch1][N][C@@H1][Branch2][Branch1][#Branch1][O][C@@H1][Branch2][Ring2][S][C@H1][Ring1][=Branch1][O][C@H1][C@@H1][Branch2][Ring2][=Branch1][C@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][O][C@@H1][C@@H1][Branch1][P][C@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][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 comprised of an L-alpha-fucosyl residue linked (1->3) to the GlcNAc residue of alpha-D-galactosyl-(1->3)-beta-D-galactosyl-(1->4)]-N-acetyl-beta-D-glucosamine. It has a role as an epitope. It is an amino tetrasaccharide and a glucosamine oligosaccharide."}]