[{"from": "human", "value": "Describe this molecule. [C][C@@H1][Branch2][Branch1][#Branch1][C@@H1][Branch2][Ring1][=N][C@H1][Branch1][Branch2][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][O][C@H1][C@@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@@H1][Branch1][Ring2][O][Ring1][Branch1][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]"}, {"from": "gpt", "value": "The molecule is a trisaccharide consisting of alpha-L-arabinofuranose and alpha-L-arabinopyranose residues joined in sequence by a (1->2) glycosidic bond, and in which a beta-D-glucopyranose residue has been attached to the arabinopyranose residue by a (1->3) glycosidic bond. It is functionally related to a beta-D-Glcp-(1->3)-alpha-L-Arap."}]