[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][Branch2][Branch1][S][C@@H1][C@@H1][Branch2][Branch1][#Branch2][C@@H1][Branch2][Branch1][Branch1][C@H1][Branch2][Ring2][S][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@H1][C@H1][Branch2][Ring2][Ring1][C@H1][Branch2][Ring1][=N][O][C@H1][Branch1][Branch1][C@@H1][Ring1][=Branch1][O][O][C@@H1][C@H1][Branch1][=C][O][C@H1][Branch1][=Branch2][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][O][O][C][O][C][O][O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a linear trisaccharide comprising two beta-D-galactosyl residues and (at the reducing end) a beta-D glucose linked in sequence (1->3) and (1->4). It is an oligosaccharide and a trisaccharide."}]