[{"from": "human", "value": "Provide a description of this molecule. [C][Branch2][Ring2][O][C@@H1][C@H1][Branch2][Ring2][Branch1][C@@H1][Branch2][Ring1][S][C@H1][Branch2][Ring1][O][C@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@H1][C@@H1][Branch1][#C][C@H1][Branch1][#Branch2][O][C][Branch1][Branch1][C@H1][Ring1][=Branch1][O][O][C][O][O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is an alpha-linked D-glucopyranosyl-(1->3)-D-mannopyranose compound with undefined stereochemistry at the reducing end."}]