[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a member of flavans."}, {"from": "gpt", "value": "[C][C][=Branch2][Ring2][=Branch2][=C][C][C][=C][Branch2][Ring1][S][C][=C][Branch2][Ring1][=Branch2][C][=C][Ring1][=Branch1][O][C][Branch1][Branch1][C][C][Ring1][=Branch1][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][O][C][O][C][C]"}]