[{"from": "human", "value": "Please give me some details about this molecule. [C][O][C@@H1][C@H1][Branch2][=Branch1][Ring1][C@@H1][Branch2][Branch1][=C][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][O][C@@H1][C@H1][Branch2][Ring2][S][C@@H1][Branch2][Ring2][O][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][O][C@@H1][C@H1][Branch1][=N][C@@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][O][O][O][C@H1][C@H1][Branch1][=N][C@@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][O][O][O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a tetrasaccharide derivative that is a methyl tetraarabinofuranoside corresponding to part of the arabinomannanan portion of the lipoarabinomannan from Mycobacterium tuberculosis. It has a role as an epitope."}]