[{"from": "human", "value": "Provide a description of this molecule. [C][C@@H1][Branch2][Ring2][O][C@H1][Branch2][Ring2][=Branch1][C@H1][Branch2][Ring1][P][C@@H1][Branch1][Ring1][C][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 2-deoxy-D-galactoside consisting of N-acetyl-D-galactosamine attached to L-fucitol via an alpha-(1->2)-linkage. It is a 2-deoxy-D-galactoside and a disaccharide derivative."}]