[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C@H1][C@H1][Branch2][Branch1][S][C@H1][Branch2][Branch1][O][C@@H1][Branch2][Branch1][=Branch1][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][Ring2][=Branch2][C@H1][Branch2][Ring2][Ring2][C@H1][Branch2][Ring1][=C][O][C@H1][Ring1][=Branch1][O][C@@H1][C@H1][Branch1][#C][C@H1][Branch1][O][O][C@@H1][Branch1][Branch1][C@@H1][Ring1][=Branch1][O][C][O][O][N][C][=Branch1][C][=O][C][C][O][O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is an amino trisaccharide consisting of alpha-L-fucopyranose, beta-D-galactopyranose and N-acetyl-alpha-D-galactopyranosamine residues joined in sequence with a (1->2)- and a (1->3)-linkage, respectively. It has a role as an epitope. It is an amino trisaccharide and a galactosamine oligosaccharide."}]