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