[{"from": "human", "value": "Please give me some details about this molecule. [C][C@H1][C@@H1][Branch2][Branch2][O][C@H1][Branch2][Branch2][=Branch1][C@H1][Branch1][Branch2][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][O][C@H1][C@@H1][Branch2][=Branch1][S][C@H1][Branch1][=N][C@@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][O][C@H1][C@@H1][Branch2][Branch1][#Branch2][C@@H1][Branch2][Ring1][P][C@H1][Branch1][Branch2][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][C][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@H1][C@@H1][Branch1][S][C@@H1][Branch1][N][C@H1][Branch1][Branch2][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][O][O][N][C][=Branch1][C][=O][C][O][O]"}, {"from": "gpt", "value": "The molecule is a branched amino pentasaccharide consisting of a tetrasaccharide chain of alpha-D-glucose, alpha-L-rhamnose, N-acetyl-beta-D-glucosamine and alpha-L-rhamnose residues linked sequentially (1->4), (1->3) and (1->2), to the non-reducing rhamnose residue of which is also linked (1->3) a further alpha-L-rhamnose residue. Derived from the Shigella liposaccharide O-antigen, it shows antigenic properties. It has a role as an antigen."}]