[{"from": "human", "value": "Describe this molecule. [C][C@H1][C@H1][Branch2][=Branch2][=Branch1][C@H1][Branch2][Branch2][P][C@@H1][Branch2][Branch2][N][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][=Branch1][Branch1][C@H1][Branch2][Branch1][S][C@H1][Branch2][Branch1][#Branch2][O][C@H1][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][Ring2][#Branch2][C@@H1][Branch1][O][O][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][C][O][O][C][C@@H1][C@@H1][Branch2][Ring1][Branch1][C@@H1][Branch1][P][C@H1][Branch1][Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][O][N][C][=Branch1][C][=O][C][O][O][N][C][=Branch1][C][=O][C][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][N][C][=Branch1][C][=O][C][O][O][O]"}, {"from": "gpt", "value": "The molecule is a branched amino pentasaccharide comprising a linear tetrasaccharide unit consisting of N-acetyl-alpha-D-galactosaminyl, beta-D-galactosyl, N-acetyl-beta-D-glucosaminyl and (at the reducing end) N-acetyl-alpha-D-galactosamine residues linked in sequence (1->3), (1->3) and (1->6), to the beta-galactosyl residue is linked also (1->2) an alpha-L-fucosyl residue. It is an amino pentasaccharide, a galactosamine oligosaccharide and a glucosamine oligosaccharide."}]