[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a glycosylgalactose consisting of beta-D-galactose having an alpha-L-fucosyl residue attached at the 2-position. It has a role as an epitope."}, {"from": "gpt", "value": "[C][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][O][C@H1][Branch1][=Branch1][O][C@H1][Ring1][=Branch1][O][C][O][O][O][O][O][O]"}]