[{"from": "human", "value": "Describe this molecule. [C][C@H1][Branch2][O][Branch2][C@H1][Branch2][O][Ring1][C@H1][Branch2][#Branch2][=Branch2][O][C@][Ring1][=Branch1][Branch1][=Branch1][C][=Branch1][C][=O][O][O][C@@H1][C][C@@][Branch2][Branch2][#C][O][C@@H1][Branch2][Branch2][Ring2][C@@H1][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][#Branch1][#Branch2][C@H1][Branch2][Ring2][=Branch1][C@@H1][Branch1][=N][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C@H1][Branch1][Ring1][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@@H1][C@H1][Branch2][Ring2][#Branch2][C@H1][Branch1][P][C@@H1][Branch1][=N][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C@H1][Branch1][Ring1][C][O][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][O][C@@H1][Branch1][Ring1][C][O][O][Branch1][=Branch1][C][=Branch1][C][=O][O][O][C@@H1][Branch1][Ring1][C][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a branched hexasaccharide consisting of a linear tetrasaccharide comprising beta-D-galactose, two L-glycero-alpha-D-manno-heptose (L-alpha-D-Hep) residues and a 3-deoxy-alpha-D-manno-oct-2-ulose (alpha-Kdo) residue linked in sequence (1->3), (1->3) and (1->5), to the L-alpha-D-Hep residue proximal to the reducing end is also linked (1->4) a beta-D-glucose residue, while the alpha-Kdo residue also carries a second alpha-Kdo residue linked (2->-4). One of a number of chemoenzymatically synthesised oligosaccharides composed of the inner core oligosaccharide of Campylobacter jejuni extended by various ganglioside mimics."}]