[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a member of pterocarpans."}, {"from": "gpt", "value": "[C][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][C][O][C][=C][C][=Branch1][S][=C][Branch1][O][C][=C][Ring1][=Branch1][C][Ring1][#Branch2][O][Ring1][#C][O][C][O]"}]