[{"from": "human", "value": "Describe this molecule. [C][C@@H1][C@H1][Branch2][Ring1][Branch1][C@@H1][Branch1][P][C@H1][Branch1][Branch2][C][Branch1][Ring2][O][Ring1][=Branch1][O][N][C][=Branch1][C][=O][C][O][O][C@H1][C@@H1][Branch2][Ring2][=Branch1][C@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][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]"}, {"from": "gpt", "value": "The molecule is a three-membered deoxy oligosaccharide which has a 6-deoxy-N-acetyl-D-glucosamine unit at the reducing end with an alpha-D-galactosyl-(1->3)-beta-D-galactosyl group attached at the 4-position. It is an amino trisaccharide, a deoxy oligosaccharide derivative and a glucosamine oligosaccharide."}]