[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a linear trisaccharide, which forms part of the repeating unit of the Salmonella serogroup B oligosaccharide."}, {"from": "gpt", "value": "[C][C@@H1][C@@H1][Branch2][Branch1][Branch1][C][C@H1][Branch2][Ring2][#C][C@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@H1][C@@H1][Branch2][Ring2][C][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][C][O][O][O][O]"}]