[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a branched amino tetrasaccharide consisting of N-acetyl-beta-glucosamine at the reducing end with an alpha-fucosyl-(1->2)-alpha-fucosyl group attached at the 3-position and an N-acetyl-beta-glucosaminyl residue attached at the 4-position. It has a role as an epitope."}, {"from": "gpt", "value": "[C][C@H1][C@H1][Branch2][#Branch1][N][C@H1][Branch2][#Branch1][#Branch1][C@@H1][Branch2][#Branch1][C][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@H1][C@@H1][Branch2][=Branch1][Branch1][C@@H1][Branch2][Branch1][S][C@@H1][Branch2][Branch1][O][O][C@H1][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][Ring2][O][C@@H1][Branch2][Ring2][=Branch1][O][C@@H1][Branch2][Ring1][#C][C@H1][Ring1][=Branch1][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][N][C][=Branch1][C][=O][C][C][O][O][N][C][=Branch1][C][=O][C][C][O][O][O][O][O]"}]