[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a ketone."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=C][/C][=C][/C][C][Branch1][#C][C][C][C][Ring1][Branch1][Branch1][=Branch1][C][=Branch1][C][=O][C][O][C][Branch1][C][C][C]"}]