[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a member of coumarins."}, {"from": "gpt", "value": "[C][O][C][=C][C][=C][Branch1][=Branch2][C][=Branch1][C][=O][C][C][Ring1][=Branch1][C][=Branch1][C][=O][O][C][Ring1][O][=C][Branch1][Branch2][C][=Branch1][Ring2][=C][Ring1][#C][O][C][Branch1][Ring1][C][=O][C][Branch1][Ring1][C][O][O]"}]