[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch2][=Branch1][P][C][C@@][Branch1][#C][O][C@H1][Ring1][=Branch1][C@@H1][Branch1][#Branch1][C@@H1][Branch1][Ring1][C][O][O][O][Branch1][=Branch1][C][=Branch1][C][=O][O][O][C@H1][C@H1][Branch2][Ring2][P][C@H1][Branch2][Ring2][Ring1][O][C@H1][Branch1][Branch1][C@@H1][Ring1][=Branch1][O][O][C@@H1][C@H1][Branch2][Ring1][Ring1][O][C@H1][Branch1][=C][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][N][C][=Branch1][C][=O][C][O][C][O][C][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a linear amino trisaccharide consisting of an alpha-sialyl residue linked (2->3) to an O-6-sulfated beta-D-galactosyl residue that in turn is linked (1->4) to an N-acetyl-beta-D-glucosaminyl residue at the reducing end. It has a role as an epitope. It is an amino trisaccharide, a glucosamine oligosaccharide and an oligosaccharide sulfate."}]